paint the pickle
A guy gets his willy licked like it's the most important thing in the world, and the licker is either a girl or another guy who thinks they're fancy.
My buddy got picked up by a waitress who said she'd do it for free. He paid anyway.
At the party, my cousin ate a hot dog and then went to paint the pickle in the back room.
He told his mom he was going to the store, but really he was painting the pickle with his best friend.