The act of cheering one up by granting them the give of sex.

Person A: What's wrong?
Person B: My dog died. *Sniffle*
Person A: Oh, well I know how to cheer you up...*Unzips pants* They don't call me the Sextinguisher for nothing!
by The Sextinguisher February 11, 2008
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(n), the act or trait of a person that any one else considers to be the polar opposite of sexually attractive.
Pinocchio yearned for a woman but he knew his dicklessness would sextinguish any chance of a hump.

Dude1: "D'you hookup at Becky's last night?"
Dude2: "Nah, she didn't mention her rents were back from vacay. Total sextinguisher."
by X-gonna-give-it-to-ya May 10, 2016
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