You're FIIRRRRRRRRRREEEEEEEEE-DUH!note This particular line became notable for Sean Hayes' hammy delivery.
"CHA-CHING!"note This line comes immediately after a scene where Conrad compares the slide they're on to a theme park. The Cat chimes in "You mean like at...Universal Studios?!", holds up tickets to the park, and then says this line. The Nostalgia Critic suggested this be the new Dr. Seuss logo, complete with Dr. Lickboot saying "We've got to have...MONAAAAY!".
"Listen kid, you can tap it with a hammer, it ain't gonna change." Explanation The Cat says this when giving checkups to the children.
"C'mon kids, you gonna listen to him? He drinks where he pees!" Explanation During the song "Fun, Fun, Fun", The Cat tells the kids to not listen to the fish's request to listen to what their mom says.
"You wanna make cupcakes? OH YEAH!" Explanation The titular character says this after Sally wants to make cupcakes. The "OH YEAH!" part is often used in edits featuring this particular Cat In The Hat.
Anything from the Cupcake-inator scene. Explanation This scene, in which the Cat in the Hat makes cupcakes in an imaginary cooking show, has many funny moments, like the Cat threatening "I'll get you, and it'll look like a bloody accident!" to the clone of himself when he doesn't believe that the Cupcake-inator does everything he told him, the Cat calling the clone "not just wrong, but stupid and ugly like his mum", and the cat screaming "SON OF A BI-" upon realizing he's cut his tail.
"You're not just wrong, you're stupid!" Explanation The Chef Cat says this to his clone to correct him.
"And you're ugly, just like your mum!"
"Dirty hoe! I'm sorry baby, I love you!"Explanation In one scene, the Cat finds a garden hoe and says this to it.
"How much is that Canine American in the window?" Explanation A song The Cat In The Hat uses when disguised as a hippie to get back the dog that the kids lost, which was made famous by a now-deleted YouTube review that was done in rhyme where the reviewer called it the only funny scene in the movie.
Editing the titular character into other media. Explanation It's pretty common to find videos where people edit Mike Myers' interperation of the character into other things, but it all kicked off when the YouTube user BUT WITHOUT uploaded "IT (2017) TRAILER BUT IT'S THE CAT IN THE HAT", leading to similar spoofs being made by other people.
In early 2017, a screenshot from the movie of The Cat holding a baseball bat became a popular meme, mostly due to its alarming resemblance to the Costanza/"Shiggy Diggy" meme.
As of late 2019-early 2020, comparisons between Myers's off-putting costume and the so-called "digital fur technology" of Cats are not uncommon, with some calling this film's cat the less creepy of the two.
Hank Humberfloob became one in early 2020 after the spread of coronavirus with the scene when he cleans his hands with hand sanitizer.