Top definition
A contributor or lurker who, out of envy, spite or misplaced rectitude, combs through another contributor's list of words in order to deliberately give each one a "Down" thumb without considering any potential usefulness such words might have.
-- "Santa Claus? I don't get it, Kurt, who is against Santa Claus?"

-- "Poor ol' Burt, it looks like you've been the victim of the dumb thumb down. Check out your other entries to see if you got flamed there, too."
by al-in-chgo August 23, 2011
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug