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1 definition by Missmaggy2u

 
1.
An exclamation of victory, especially when smacking someone. Originated from the Team Fortress Scout character, who exclaims "Boink!" and "Bonk!" when he lands a hit with his baseball bat.
-run up behind someone and smack them on the head, and they drop what they're carrying-
"BOINK!"
by Missmaggy2u May 23, 2012