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In the marine corps, a combination of a utility desert top and PT bottoms.

The opposite of boots and utes.
Hey you dumb boot, go get into your grutes!
by Benny Binasi August 24, 2012
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Several meanings and uses. Usually used to describe something massive or immensely strong. Also a unit of measurement. Although the rate of one Grute changes frequently, one can safely assume one Grute will never be less than about 300 lbs.
by aooooooooooo September 26, 2008
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