Top Definition
A common way of rating things. One either places his thumb up to indicate something is good, or okay, or places their thumb down to indicate the thing sucks.

www.urbandictionary.com converted to this system over the star rating system, I think it stinks.
the thumbs up thumbs down system sucks.
by Conor June 02, 2004

The Urban Dictionary Mug

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The Urban Dictionary Mug

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