posse pussy Share definition Flag A girl who has been out with most of ya matez at one point or another. Tina is such a 'posse pussy', I mean she'z shagged Me, Tony, Dave, Pete, Alan and Steve all from tha same crew. posse pussy by Safecracker G September 10, 2004 0 0 Get merch Get the posse pussy mug. Buy Now — $32.95 See more merch