Slough bag Share definition Flag A woman who is less than desirable because she parties too much, is physically unattractive and overly sexually active. She's a slough bag, but its okay because I'm drunk and its slough bag Saturday. Slough bag by Cobra12 March 13, 2010 0 0 Get merch Get the Slough bag mug. Buy Now — $32.95 See more merch