fingergnarst Share definition Flag The smell that lingers on ones finger after picking or scratching your own or someone else's asshole, slit, or gooch. Man, last night Jamie gave me a Dirty Sanchez and his fingergnarst made me cry. fingergnarst by Sean_moods July 2, 2017 0 0 Get merch Get the fingergnarst mug. Buy Now — $32.95 See more merch