crotch gusset Share definition Flag One who is lower than the nuts that rest on them. "Those crotch gussets at (hated organization here) only give lip service to our concerns." crotch gusset by Stormageddon: Dark Lord of All February 18, 2015 0 0 Get merch Get the crotch gusset mug. Buy Now — $32.95 See more merch