drinkin' out of cups Share definition Flag When a girl is being a bitch, she's drinkin' out of cups. Guy 1: What's her problemGuy2: Oh, she's just drinkin' out of cups! drinkin' out of cups by KCsquared October 25, 2009 0 0 Get merch Get the drinkin' out of cups mug. Buy Now — $32.95 See more merch