Someone who has sexual relations with not only the entire football team but the waterboy too.
Person 1: DUDE, Megan is such a Sex Machine!
Person 2: DUDE, Sex Machine is Megan!
by hpsedrnieaml January 22, 2011

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-noun
A bracelet made from cheap yarn sold by black street vendors in Paris to unsuspecting tourists. First, they bum rush the tourist and then slip it on while repeatedly chanting "sex machine." In actuality, the bracelet only gives the wearer a random STD. English tourists are charged the ridiculous price of ten euros. Only five for Americans.
"I can't believe I just payed five euros for this sex machine!"
by saggy sammy July 10, 2008

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seX4 m4ch1n3
yes Vuong is so hot and cool and Leo sux and Henry kills little girls
by jack September 08, 2003

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To be very sexy.
"Hey Sex Machine" (There is an implied lust involved)

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A man from Dothan, AL named Brad Philpot! Best sex you will ever have!!!
OMFG I just had sex with Brad Philpot five times in a row and it was amazing!!! He is the best sex machine ever!! I'm still cuming!!!
by Cumtastic Lover April 01, 2011

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Any boy on a good day; Aka Sy-kun
My mom told me Justin was a sex machine; was she ever right!
by XakaiXameX December 24, 2006

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Somebody who is sexually active. That to a machine. They continually have sex as if it were programmed in a machine... It is disgusting.

Person 1: Hey did you hear about Sydney?
Person 2: Yeah, what about her?
Person 1: She has slept with so many people. INCLUDING ALEX.
Person 2: Wow. What a sex machine
by HerTitsRFake March 18, 2009

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