to fuck/make love/have sex with someone.
"See that bitch? Yeah i boinked her"
by hobo January 19, 2005
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A safe for work replacement for the words "sex" or "fuck" in all their forms
"That was boinking awesome."
"I bet they're boinking right now."
"Boink you!"
"That was the best boink I ever boinking had."
by Shrazz January 7, 2018
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The sound that the Scout in Team Fortress 2 makes when he beats someone with his metallic bat.
Scout hits Solder with bat

Scout: BOINK!!
by TF2 Boink Machine November 1, 2009
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The sound that occurs when scientific progress is achieved
by Sublimecow April 29, 2004
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"I cant wait to boink her tonight."
by bumhunterbob February 22, 2005
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