backup bitches Share definition Flag Two or more bitches in a group with a leader (usually a hotter chick). If the hot chick wants to get in the face of a rival, she brings along her backup bitches cause she is too chicken shit to go solo. backup bitches by pmtm June 12, 2010 0 0 Get merch Get the backup bitches mug. Buy Now — $32.95 See more merch