When a male party-goer waits until females at the party are drunk to make his move, especially when the other males are too intoxicated to realize what is happening
Friend 1:"Yo I heard you were pullin' a robby Last night"
Friend 2:"Yea, and the drunk bitties made me make out with Frank"
To take advantage of a woman that normally finds you extremely unattractive, usually done when the girl is either emotionally distressed or extremely intoxicated
Bro 1: Where did audreygo? She passed out on the couch a few minutes ago
Bro 2: I think william took her upstairs....
Bro 1: There he goes again, always pulling a robbie