A Buffalo Nickel
A weird sexual move where someone pulls a coin out of their butt and slaps it on your face like you owe them money.
My friend tried to do a Buffalo Nickel on me and I almost peed my pants.
At the party, some guy pulled a nickel out of his butt and slapped it on my forehead. That was a Buffalo Nickel.
My uncle does a Buffalo Nickel every time he goes to the store. It's a tradition.