Dag Narby Share definition Flag A piece of feces that hangs on after taking a dump. Also known as poo-leavin's, poo hangers, etc. I went to wipe, and I realized I had a dag narby stuck to my ass-crack Dag Narby by DamnBigFeet January 26, 2009 0 0 Get merch Get the Dag Narby mug. Buy Now — $32.95 See more merch