Top Definition
An extra-enthusiastic spin on the traditional "thumbs up" gesture; usually exclaimed whilst making said gesture.
Person 1: Hey, how are you today?
Person 2: :D Thumbsupski! *thumbs up* "How about you?"
Person 1: Ha, that's cool. Wish I could say the say the same...!
by spiffy_kimbean April 07, 2011

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