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meaning very good, a rating. 2 thumbs up + penis as third thumb
she's 3 thumbs up, the dinner was 3 thumbs up, the movie was three thumbs up
by Robert Geary July 18, 2006
When something is so awesome, that two thumbs up is not enough.
Anders: (thumbs up!)

Britters: (THREE THUMBS UP!)
by Anders.01 July 02, 2009
A rating given to a female by a male to show that she is very attractive. It is usually done while doing a hip thrust.
Dave: hey, dude check out that chick. She is so hot.
McDave: dude totally i give her a three thumbs up.
by Rassintator March 25, 2009