dirty demers Share definition Flag when your on top of a girl 69'n and pretend like your takin a rest and fart on the bridge of her nose. I was totally 69'n that broad from the bar and her pussy stunk so I gave her a dirty demers. dirty demers by Yakkie May 3, 2009 0 0 Get merch Get the dirty demers mug. Buy Now — $32.95 See more merch