It's just a question mark. You should draw something unexpected.

Someone is being a douchewad, it seems, and is telling GP_ (??) "fuck you."

A fancy french crab says, "le boom."

Bart Simpson grafitti'd a wall.

Unfashionable lady drinks from a bottle.

What the what?

Do robots dream of electric sheep?

Penguin is astonished by an unexpected toilet baby.

Stegosaurus is startled by vampire T. Rex!

An old, tired, outdated meme.

A poorly rendered Betty Boop.