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Someone who is all hot and aggrevated or moody. Someone all in a huff. Usually aimed at spoilt children who cant get what they want or women on their period.
Woman: bla bla bla nag nag whinge whine your not going to the pub
Man: Stop being such a gruffle monkey and put my dinner on for 10pm.

or

Man: Lets have sex darling
Woman: I cant im on my period whinge whinge nag nag
Man: Stop being such a gruffle monkey and take it like a man.
by Moon Meeko May 25, 2007
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Aug 4 Word of the Day
Man's greatest invention, brain bleach removes bad memories and general DO NOT WANT moments. Every household should have a few gallons.
1: Dude, I just walked in on my parents.
2: Have some Brain Bleach!
by Andikun November 06, 2007
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