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1. the act of jacking off a man with an exceptionally large amount of body hair.

2. a term generalizing the relationship between a woman and a man who resembles Chewbacca.
1. David: Holy shit Jenny, your boyfriend looks like Robin Williams!

Jenny: Dude, grizzlybating him is so gross!

2. David: Hey, who's that guy Kristen is with?

Jenny: Her boyfriend. They're grizzlybating.
by Captain Ironpatch December 16, 2008
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