The patch of hair between your balls and asshole (the grundel) and when it gets too long, it looks strikingly like a mohawk.
"Yo Jimmy, give me a couple minutes, I have to go trim my Grundel Hawk because I am expecting a rim job from Wendy tonight."
"I need to shampoo my Grundel Hawk, that shit just stinks."
"I need to shampoo my Grundel Hawk, that shit just stinks."
by Shower Fart September 10, 2008