Top definition
To fist someone in the vagina and ass at the same time. It looks like a shark's mouth.
Girl 1: He grandpa sharked me!
Girl 2: Ohh, I bet you loved it!
by Blahblahblahblah123:DDDD July 28, 2010
Get the mug
Get a Grandpa Shark mug for your father-in-law Callisto.