Dethklok deals with the brutality of Christmas when their mothers show up. Murderface and Dick Knubbler shop around to get a Dethklok Christmas special going. Dr. Rockzo has fallen so far down, even Toki wants nothing to do with him anymore.
- Addled Addict: Dr. Rockzo loves cocaine, but he's become so addicted he's doing lines of coffee sweetener in front of his parole officer. When he does get a bag of cocaine, he shows it off to everyone in the park, including a police officer.
- Alcohol-Induced Idiocy: Nathan insists the band's moms don't get the booze, with pictures of the "last time." Such pictures involve playing Twister with the Klokateers, having a drunk orgy in the sauna, and hiring male strippers to dance with them. During the Murderface-Knubbler Christmas Special, the moms get plastered after finding the booze. Stella crashes her scooter into the cross, which falls on top of her and Toki. Molly, Anja and Rose just pass out. Servetta gives Dr. Rockzo a handjob, ignoring her son's protests.
- The Bad Guy Wins: Rockso wins the day completely here, selling all of Toki's Christmas presents for coke and ending the episode getting an HJ from Skwisgaar's mom, while a furious Toki is pinned under a huge cross.
- Christmas Episode: The only Christmas episode in the series' run.
- Failure Montage: Dick Knubbler lists some of Murderface's business failures. First off is "Murderface's Titty Time Car Wash." It made zero money and attracted several lawsuits, not because of Murderface touching the girls, but the girls being morbidly obese enough to cause vehicular damage when they were straddled over the cars. The second failure is the "Murderface Planet Piss Cologne." Everyone who used it broke out into horrible skin rashes, and the FDA found traces of
urine in every bottle. Murderface reveals it's all his piss. The last one shown is the "William Murderface Home Pyrotechnics Kit." Two fans use it and blow themselves into lunch meat. - Gosh Dang It to Heck!: The Murderface-Knubbler Christmas Special Starring Dethklok gets funded by the Christian Church of Churchology as long as there's no profanity, drugs, sex, or violence.
- I Banged Your Mom: Rockzo is particularly proud of the fact that he's receiving a handjob from Skwisgaar's mom.
- I Need a Freaking Drink: Skwisgaar is drinking a bottle of booze to deal with his mother bending over in front of Murderface.
- Happy Place: The boys take their mothers to the mall. Pickles retreats to his "happy place," imagining he's at a lake in a canoe.
- Mall Santa: Dr. Rockzo gets work as a mall Santa, which Toki finds out the hard way when he goes to see Santa Claus at the mall.
- Male Gaze: Murderface is focused very intently on Servetta's butt while she's bent over in front of him.
- My Beloved Smother: The boys have to deal with their mothers showing up for Christmas.
- My Sister Is Off-Limits: Skwisgaar doesn't like that Murderface wants to have sex with his mother.
- The Nose Knows: Stella Murderface smells where the boys hid the booze during the show behind a chained up door.
- Parental Sexuality Squick: Skwisgaar gets himself drunk at the sight of his mother acting like a slut. He lets out a Big "NO!" at the end of the episode when she gives Dr. Rockzo a handjob.
- We Used to Be Friends: Toki has cut himself off from Dr. Rockzo since his last appearance, no longer wanting anything to do with the drugged up clown. The rift gets wider when Dr. Rockzo steals Toki's Secret Santa gifts and pawns them to buy cocaine.
