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!!
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one he enjoys to nibble/munch the grundle
see: grundle
That kid is whack! What a grundle muncher.
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That Mr. Fry munched on grundles all last night
WOW that mr. fry is a real grundle muncher
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