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To whine or complain aimlessly or for no discernible reason; especially applicable to children.
"My room mate got so trashed last night, all she can do today is pop Tylenol and grutz."
by hotlinguist January 13, 2009
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2
To slap a guy in the balls with the back of your hand quickly, as in a flicking motion.
"Why is Larry on the floor whincing?"
"He just got a kickass grutzing from Ted."
by Dsh Dsh January 07, 2010
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