Grug is someone who is basically a Neanderthal
Homo sapien #1: bruh Stephen just ate plain bread
Homo sapien #2: what a grug
by EmperorSoup June 28, 2019
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Someone who is doing something stupid or being a neanderthal.
Homosapian 1: That damn connor guy keeps hitting his head, what a grug moment .
Homosapian 2: that is a true grug moment.
by HeroicPotato June 28, 2019
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The name of a caveman.

Rhymes with rug.
Get over here Grug. I need you to make me a rug.
by Derpy Leaf Horse April 26, 2017
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The hottest and strongest character from the croods. Also has a cock that will blast you to the moon
Grug is Bae
by OreoWeirdo September 21, 2020
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A failed attempt in a particularly spectacular fashion, specifically pertaining to sports or video games.
"Did you see that Grug? It missed his bat completely"

"Oh dude, you Grugged that level. Perhaps Tetris is more your style."
by GrolschMan February 3, 2010
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Someone who steals other's joke
Yair says a joke quietly and no one hears
Yoav says the same joke Yair said and everyone's laughing
Yair: Yoav you are such a grug
by Cafcefon December 2, 2021
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That feeling when you have nothing else to fucking say so you just say grug
"I'm queuing up without you"
by TekeJR February 10, 2020
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