Someone 'twerk'ing it. I guess it refers to shaking their rear?

Hitler smoking a joint.

That one guy from Homestuck saying "NOPE". (the one with the square eyes) (Why is homestuck so popular here?)

The index finger is slightly separated from the other fingers. He's probably is stuck up or something. Dumbsnobthinkshe'sbetterthanus!?

a wizard with large shiny eyes that is in a yellow and black striped scarf wields a brown wand with yellow and pink sparks

A black tortilla has some shredded cheddar cheese on top.

Cow playing xbox

Juliet is mistaken for Hitler by all the people standing under her balcony.

A smug unicorn with purple hair and a knife threatens a book.

Carrots scare and alarm penis man.

That guy who is laughing off screen won't be laughing for long as there is a gun sticking out of a giant ear, pointed straight at him.

An elephant recoiling in fear at the sight of a small cat.