The Off the Air "Shapes" episode has this short called "Glore". The short has a little bit of references, so let's go through them all!
The many, many references in this short include:
An X-Men poster is on the wall.
- One of the boys has a Deadpool shirt.
- SpongeBob SquarePants appears, changing from a remote.
- Beavis And Butthead appear slapping each other.
- Bart Simpson as just a head with three eyes.
- Link appears stabbing himself and turning into a mushroom.
- The Hypnotoad gets ripped apart.
- Batman eats candy and dilates his eye.
- Mordecai and Rigby come out of hot sauce bottles.
- Bart Simpson, Krusty the Clown, Spider-Man, Squanchy, Arnold, Shrek and The Flash all come from a TV.
- Ronald McDonald gets cut by a guillotine.