71 91 Share definition Flag when you wipe your ass and your middle finger rips through the toilet paper causing your finger to jam into your ass. bro your finger stinks you must of committed a 71 91 71 91 by P.I.M.P.123 December 18, 2004 0 0 Get merch Get the 71 91 mug. Buy Now — $32.95 See more merch