A person who chases after girls and will ditch his own bros to go hang out with a girl.
Bro 1: Yo guys, you wanna hit Futtbuckers after the game?
Pussysnake: Naw, I'm gonna go hang out with this girl I met at the club.
Bro 2: (after pussysnake leaves) wow, he's sucha pussysnake!
A pussybreaker group is a large group of friends who are mostly homosexual, and/or want to have sexual intercourse so hard with a woman that her pussy would metaphorically 'break'.