kiffle sniffer Share definition Flag You go into a bathroom after someone has pooped just to smell the stink. Dude, did you see that guy go into the bathroom stall right after I pooped? He's such a kiffle sniffer. kiffle sniffer by Mandjayscott May 26, 2018 0 0 Get merch Get the kiffle sniffer mug. Buy Now — $32.95 See more merch