Prunner Share definition Flag hot bitchh, PMS, big breasts, usually ready to party! very loose, ready for sex. can be related to feeling "randi" Hey you ready to prunner it up tonight ?!?! Prunner by giggles649 January 24, 2009 0 0 Get merch Get the Prunner mug. Buy Now — $32.95 See more merch