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A person who absolutely love to lick, suck, bite, blow on, and/or lap up the stretch of skin from a man's anus to his testicles.
That chica was a grundle muncher extrodinare! She was born to be a grundle muncher cuz I know her mother didnt teach her that!!
by Jerzy Jaz November 28, 2006
one he enjoys to nibble/munch the grundle

see: grundle
That kid is whack! What a grundle muncher.
by Quail Man September 24, 2003
Mr. Fry from somers hs
That Mr. Fry munched on grundles all last night

WOW that mr. fry is a real grundle muncher
by NNSDNSND January 12, 2009