cup bitch Share definition Flag A girl at a party, where drinking is involved, who sits or stands like a lost ass bitch conviently holding cups. Guy 1: Man, where are the cups? Guy 2: Go find the cup bitch cup bitch by AmIRealTho January 25, 2018 0 0 Get merch Get the cup bitch mug. Buy Now — $32.95 See more merch