worm grunting Share definition Flag The act of inhaling earthworms through your nostril and expelling them via your mouth. Ben and Kym are better at worm grunting than anyone else in the 5th grade. worm grunting by _Hoey_ October 1, 2007 0 0 Get merch Get the worm grunting mug. Buy Now — $32.95 See more merch