butter the grundle 

The act of applying speed glide anti chafing deodorant stick to the area located between the testicles, anus, and bilateral thigh area to avoid severe chaffing from prolonged friction

bob : Holy shit I just ran 5 miles and my asshole, taint, grundle, and thighs are bleeding!!
John: Well, you need to butter the grundle before exercising you dumbshit

butter the grundle by Giggle berry June 18, 2014