1 definition by Lil' Wendt

Top Definition
The extra flabby skin on a persons (or Animals) neck. The grunu is similar to a scrotum sack, only found on neck.
Old people tend to have excessive grunu's

My dog Woody has a big grunu.

I love to pull on Woody's grunu.
#neck #extra skin #scrotum #woody wendt #lil wendt
by Lil' Wendt January 02, 2011
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