There's a reference to Homestuck, here. The Alt Text states: "I WARNED YOU ABOUT STAIRS, BRO!!!! I TOLD YOU, DOG!" which quotes a meme derived from the comic and features Sweet Bro and Hella Jeff.
This strip features a radio call sign, KPET, that was also used by the webcomic Newshounds.
Later, a guest comic makes another reference, in which Tiger has a least favorite day of the week (Thursdays in his case as opposed to Garfield's Mondays dislike), gets hit by a wayward pie, and sits in the exact same setting as a typical Garfield comic.
This strip references a Running Gag in Courage the Cowardly Dog, one where Eustace Bagge puts on a huge mask and frightens Courage by shouting "OOOGAH BOOGAH BOOGAH!" This results in the dog jumping in fright, screaming "AAAAAAAAAAAAAAAAAAA!," and running off. Here, a group of woodland creatures dress up as Bedsheet Ghosts for Halloween and scare Maxwell, who screams in fear. The same dialogue is used.
"Tish, You!", a brand of facial tissues from the web cartoon, is referred to a few times. Bino is seen crying and holding a facial tissue while sitting next to a box marked as such here, watching All Dogs Go to Heaven. The same boxes sit next to Peanut, who is shown teary-eyed while viewing the same film here and weeping while writing an arc of his "Spot (Superdog)" comic that hits him a little too close to home here.
The word "nudule", a term from the web cartoon that describes a growth found on space whales. Tarot mentions here that "ice cream nudules aren't really from the future — or ice cream."
Daisy's Running Gag for the first several years of the webcomic was her saying the single phrase "Hi, I'm Daisy" and nothing else, first seen here. It's a reference to Princess Daisy's use of the same phrase in Mario Kart, which has since become a meme.
The entire "Thematic Arc of Questionable Quality" is an homage to some of the better-known strips from Calvin and Hobbes. The references include Peanut’s use of a box to teleport (as opposed to transmogrify), pulling a wagon (searching for a hill to descend in this case), and reciting a poem while contemplating tickling a sleeping Grape’s tummy.
"And this is my other brother Daryl." (sic) It's a reference to the two Darryl brothers in Newhart and said by Miles when he introduces one of his brothers to Peanut.
Following up on the theme naming of the rest of the Sandwich family, Mrs. Sandwich's name was revealed to be Jill in reference to the "Jill Sandwich" meme from Resident Evil.
Bino regifts Sasha a number of presents, including a "tiny piano like the Peanuts guy". Later on, he and Sasha take up positions similar to those of Lucy and Schroeder as he listens to her play.
In the Alt Text to this strip, there's a lengthy description of the number of ways one can prepare cheese. It's a reference to a similar scene in Forrest Gump, where the title character voluminously lists all the ways one can cook shrimp.
Anyway, like I was sayin', mom fed us cheese like ALL THE TIME. She would barbecue it, boil it, broil it, bake it, saute it. Dere's uh, cheese-kebobs, cheese creole, cheese gumbo. Pan fried, deep fried, stir fried. There's cheddar cheese, Swiss cheese, mozzarella cheese, pepper jack cheese, cheese soup, cheese stew, cheese salad, cheese and potatoes, cheeseburger, cheese sandwich. That — that's about it.
One of Stanley D'Angelo's voice mail messages is for a "Henry, Jr.", in which Stanley states that Hovitos is not a real language, and says he's shocked that Henry thinks artifacts belong in "a sterile museum". This is a reference to Indiana Jones, real name Henry Jones Jr., and specifically to the fictional Hovitos tribe from Raiders of the Lost Ark and the line "That belongs in a museum!" from Indiana Jones and the Last Crusade.
The title to this comic, "This Is Not My Beautiful House," quotes a snippet of lyrics from the Talking Heads song "Once in a Lifetime." Its Alt Text also quotes the song's lyrics: "Time isn't holding us, time doesn't hold you back."
A second example from "Once in a Lifetime" occurs in the dialogue of this comic when Maxwell says, "HOW DID I GET HERE?"
"What have I done? They've killed the wabbit!" is a line from What's Opera, Doc?. It's said by Karishad, who wears a horned viking helmet like Elmer Fudd and holds Zach up in the same manner Elmer holds up Bugs Bunny.
In the last panel, Karishad dances away helmet in hand, similar to the way Michigan J. Frog does in One Froggy Evening.
The Alt Text states "Then somehow, Zach's shepherd's crook reaches over like a stage hook", which happens in such Looney Tunes cartoons as Hamateur Night and What's Up Doc?
The title of this strip, "None Shall Pass," is a reference to the Black Knight section. Here, a raccoon guarding the front entrance to a secret chamber tries to stop Peanut and Grape from entering. Grape grabs him by the throat, forcing the raccoon to back down — thus he's no more successful in his task than the Black Knight in the movie.
This comic has the title "Well Turn Me Into a Newt," a shout out to the witch trial scene in which a variant of this phrase is said. The strip is one where ace reporter Jim-Jim is mistaken as the alter ego of Spot (Superdog) and tied to a stake, about to be set ablaze.
The verbal exchange here is reminiscent of that from the "Bring Out Your Dead" section in the film, including the lines "I'm not dead" and "I think I'll go for a walk." When Grape and Maxwell happen upon a bird, they think it's dead — but when the creature protests to the contrary, Grape steps on him.
Grape: Look, a dead bird! Maxwell: It must have hit the window! Grape: (sigh) I guess you only appreciate how temporary life is when— Bird: Hey! Hey, I'm not dead! [Grape stomps on the bird] Grape: —when you're put face to face with its fragility. Maxwell: Dibs, by the way. Grape:I found it, I have dibs! Bird: (stumbles off) I think I'll go for a walk...
When Maxwell asks Mungo how he got so strong here, Mungo's reply is "100 push ups! 100 sit ups! 100 squats! And a 10KM walkie every day!" This is an homage to Saitama's stated regimen in One-Punch Man, said nearly word for word.
A reference to Mary Poppins is made by Tarot while King is looking for a babysitter for his pups. She comes floating out of the sky carried along by an umbrella, dressed like the character and carrying a similar bag. It's followed by a brief and casual conversation between Tarot and King that is as awkward as you would expect considering their history. She doesn't even bother inquiring about the babysitting gig.
Tarot: Sure is windy today. King: Kinda, yeah. Tarot: Well, see ya. King: Bye.
During the Guys and Dolls pastiche, Grape/Sarah's protest signs read "Down With This Sort of Thing" and "Careful Now". This is a reference to the Father Ted episode "The Passion of St. Tibulus," where the title character and Dougal are seen holding protest signs saying the same thing.
Jasper, the mostly silent indigo-colored cat, has the same name as the eponymous cat in Jasper and Jinx, before they were renamed Tom and Jerry. Of his three appearances, the second features Jasper being given a hotfoot by Jinx the mouse while wooing an unnamed Toodles Galore counterpart, and the third is a string of mostly unseen Tom and Jerry references (being flattened into an accordion, seeing a mouse carrying garden shears and accompanied by a duck).
A brief arc of three strips involves a novelty music group backed by the ferrets who want to be taken more seriously: Alan and the Ground Squirrels, who are an obvious reference to Alvin and the Chipmunks.
This strip starts to make a reference to The Lord of the Rings: The Two Towers, with Res quoting Gandalf's line when he returns as Gandalf the White, before being rudely interrupted by Grape.
Grape: Res?! Res: Res? Yes... that's what they used to call me. Res the Grey. That was my— [Grape smacks him] Res: OW!
Another alt-text Discworld reference here, where Spo the mouse's Ghost of Christmas Yet To Come costume is instead compared to the Disc's Death of Rats.
The alt-text to this strip is a reference to the “Buttons and Mindy” segment of the show. The line, "hey mister wolf whatcha doooooin' why why why ok i love you bye bye," is a variant of a phrase Mindy often says.
The title of this comic, “Goodnight Everybody,” references a Catchphrase Yakko Warner says when a suggestive Double Entendre is used. Here, Grape and Peanut inadvertently spy on Fido and Sabrina sharing an intimate moment.
The 2018 Halloween arc has Peanut and Grape dressed up as the lead protagonists from Zootopia, albeit gender-reversed with Peanut as Judy Hopps and Grape as Nick Wilde.
Maxwell: And I ran, I ran so far away. I just ran. I ran all night and day. Peanut: But you couldn't get away? (In the flashback, this is where Rufus lays a Shovel Strike on the coyote chasing kitten Maxwell) Maxwell: What? No, what made you think that's where I was going with this?
When Marion arrives at Jess' house, Karishad is reading a book called "To Serve Sqrl" (sic). It's a direct reference to this episode, which shows an alien holding a cookbook whose cover title translates to To Serve Man. The strip is even titled"Twilight Zone Twist".
The title of this strip, "To Serve Pizza Man," is a spoof of the episode title. Here, a chubby pizza delivery man comes to the wolves' residence and is immediately nervous that he might get eaten. "Four Finger Discount" Jack teases him about his fear, causing the delivery person to faint.
Delivery Man: Two extra la —— AAAAH —— is this the right house? Daryl: Probably! Let me go check! Jack: Who ordered a well-marbled delivery guy? [Delivery Man faints] Jack: Come on! That was obviously a joke!
Spo: I'm never leaving you again! You mean more to me than all the cheap flings of Europe! There's so many times I've let you down, so many times I've played around, I tell you now, they don't mean a thing! Squeak: That, I don't doubt.
The title of this comic, "Don't Know When I'll Be Back Again," lifts a line of lyrics from this song. It's appropriate because the characters are indeed leaving on a jet plane.
Finding Nemo receives a Shout Out here. One of Dory's Madness Mantras from the movie is that fish are friends, not food. When Sasha walks in on Lois (a bobcat) and Marion (a squirrel) making out, she mistakenly thinks Lois is trying to eat Marion. The dog shouts "Friends not food! Friends not food!" while threatening them with a broom. Incongruously, the Alt Text here references Spongebob Squarepants, stating "Who lives in a pineapple under the shirt?"
In this strip, Breel's alter-ego flings a multitude of bladed weapons at Breel which get stuck in the wall. The top one bears a striking resemblance to the Master Sword from The Legend of Zelda: Ocarina of Time.
Most of Peanut's lines in the second panel of this strip are lifted from the 1958 novelty song hit "The Purple People Eater" by Sheb Wooley.
Peanut: The one-eyed one-horned flying purple people eater! Sure looks good to me!
Here, the outdoor dining scene from Lady and the Tramp is recreated and Lampshaded as such. Subverted when Peanut and Tarot are served a plate of rigatoni instead of spaghetti — which they then scarf down hungrily without the slightest bit of romantic pretense.
Peanut: You know, I never saw that movie. Tarot: Me neither. [cut to the two dogs gulping down the food, faces in plate]Groumf Mouf Monf Omf.
The title of this strip is "Silly Rabbit Tricks Are for Chumps." It's a reference to the slogan for the General Mills cereal Trix, which is "Silly rabbit — Trix are for kids!"
"Someone's Rocking My Dream Boat," a song written by Leon René, Otis René, and Emerson Scott. First performed by The Ink Spots in 1941 (and by many other artists since then) as well as appearing as background music in several Looney Tunes cartoons of the period.
The title of this strip is directly lifted from the song's title. References Fox's irritation that Mungo is trying to talk him out of reconnecting with his celestial girlfriends.
In this comic, Max jumps up onto a fence and sings the opening to this song. His rendition is cut short by a thrown boot to the face. Likely referencing a Looney Tunes cartoon.
Max: [sings] Someone's a-rocking my dreamboat~ Someone's invading my dream~ We were sailing along Peaceful and calm Suddenly something went— BOOT!
This strip's title, the beginning of a story arc about a theme park the ferrets run, is "The Happiest Place on Earth, on Earth." It's a reference to Disneyland's nickname, which is "The Happiest Place on Earth."
The title of this comic, "Your Heart Is Full of Unwashed Socks" is a line of lyrics from this song, as is the Alt Text of "The three words that best describe you, are, and I quote: 'Stink, Stank, Stunk'."
Here, Tiger sings alternative dark lyrics to this song. The Alt Text further references lines said by Lady Macbeth from the William Shakespeare play Macbeth.
What have I done to Mister Grinch? Is this a dagger before my eyes? Who would have thought for that old man To have so much blood inside Mister Grinch?
"If Only in My Dreams," the title of this strip, is a line of lyrics from the song "I'll Be Home for Christmas."
"Until the Other Kitties Knock Em Down," the title of this comic, is a parody of "Until the other kiddies knock him down," a line of lyrics from the song "Winter Wonderland." Here, Grape (a cat) demolishes a snowman when Peanut pops out of it trying to startle her.
Both the film 2001: A Space Odyssey and the Richard Strauss classical music work Also sprach Zarathustra are referenced in this comic. Grape and Peanut are at the zoo, where the former says she doesn't want to go to the ape house because they're always doing the same thing. Cut to two such critters celebrating around a large black monolithic slab. The strip's title is "Thus Grape Zarathustra," a Shout Out to the Strauss piece.
In this comic, Peanut is seen lying in his dog bed wistfully listening to the song "Syndicated Inc." by "Weird Al" Yankovic on headphones.
Peanut: [listening to music wearing headphones] Forever I will always be / Glued to my TV.
The title of this strip, "An Undigested Bit of Beef," is a reference to the same phrase in A Christmas Carol by Charles Dickens. It concerns Joel/King seeing Pete as a hallucination, as Scrooge saw Marley's ghost.
In this strip, one of Miles's cubs decides to change his name to North Star after seeing the anime, and the Alt Text references Kenshiro's most famous line.
This strip has Kitsune using Rapid-Fire Fisticuffs on Demon-Steward and then reciting a variation of the You Are Already Dead line. As a bonus, the layout of the strip is also changed so that it reads from right to left as if it was a manga.
This strip quotes verbatim a line from Calvin and Hobbes in the alt text, referencing a similar splashing situation occurring in both.
Gee, I don't know Dad, maybe the seal on the tub leaks
Spot McCloud Presents: Comics is an extended reference and parody of Understanding Comics, complete with an expy of Scott McCloud explaining comics to the reader.
The Alt Text states: "I WARNED YOU ABOUT STAIRS, BRO!!!! I TOLD YOU, DOG!" which quotes a meme derived from the comic and features Sweet Bro and Hella Jeff.