grizz nasty Share definition Flag To take a huge, disgusting, and most importantly smelly shit, and then go get your boys and show them what you accomplished. I dropped this grizz nasty at Wendy's the other day, and my boys thought couldn't stop laughing. grizz nasty by C-Fly December 5, 2004 0 0 Get merch Get the grizz nasty mug. Buy Now — $32.95 See more merch