Shrimping. Not your New England uncle's favorite pastime (or maybe it is, I don't know your uncle), shrimping is described by our friends at Urban Dictionary as the sexual act of sucking on another person's toes.
urban dictionary says
Shrimp
Someone who has a sexy body but isn't beautiful. Came from the idea that when eating a shrimp, you only take the body then throw away the head.
Boy1: (Looking at a girl who has her back turned at him) Damn she's hot!
(Then the girl faces him)
Boy2: Yuck, she's a total shrimp!