Definitions by Bob-A-Billion

Pitbull 

when a girl is deepthroating and shakes her head rigoriously back and forth while at the base of the penis. Much like a pitbull tugging on a rope or dog toy.

Your girl is such a slut that the only time she says no to me, is when she's giving me the pitbull.

Pitbull by Bob-A-Billion October 4, 2006