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(grun-del tung) n., the kiss of a female a short while after she has already performed fellatio on another male.

Usually occurs at parties, when the female is excessively intoxicated.
Dude Seth and Ned got some nasty grundle tongue from Lindsay after she gave Tim head.

(any resemblance to real names, and/or real situations is completely coincidental)
by C Nasty March 05, 2006
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