Top definition
the act of giving an urbandictionary definition a thumbs up on your work computer, home computer, and your iPhone every day. it certainly does add up after a while.
Fred kept thumb boosting his definition of "love" every day for 2 years until it had the 5th most thumbed up definition of the word.
by brett69xxx September 23, 2009
Get the mug
Get a thumb boosting mug for your mama Helena.