three people engaged in sex acts at the same time; two of the three are of the same gender
Big Nate had a threesome with yo mama and yo sister!
by Big Nate June 12, 2003
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what are you!? Well if ya wanna know then ...

IT MEANS 3 PEOPLE HAVING SEX!

Well IF YA WANNA SEE IT IN PERSON THEN GO TO YouTube TO FIND OUT!
Ash: hey guys wanna do a threesome!

Lilly:okay!

Max:...okay?
by Lizzy..! December 15, 2017
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A usually careless sexual act that speads the sexually transmitted disease: Trich
She didn't wash off the dildo before putting it into me so now I have Trich.
by Lee February 19, 2005
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this is a drink (sort of) it's the process of taking a shot of tequila with the salt and lemon.
This is the typical, 'Salt, Tequila, Lemon'. Known as a threesome because they go perfectly together and it's like an alcoholic orgasm in your mouth.

This term is quite well known around the north west.
Girl: Let's have a threesome
Guy: Ok
Girl: You bring the tequila!
by TequilaOnTheHorizon March 07, 2011
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Threesome is sex with three people.

A threesome can be consisted off:
Two men and one woman
Two women and one man
Three men
Three women
If sex with three people is a threesome, and sex with four people is a foursome, then I know why everyone calls me handsome
by SpicyVibezzz May 04, 2020
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A Squidward Threesome is a BDSM threesome involving two disobediant subs, or brats, and a dom. It involves the brats disobeying the dom’s orders, expecting to be punished, while the dom punishes them for mutual sexual pleasure.
I just had the greatest Squidward Threesome, man. I dominated the fuck out of those two girls.
by GingervitisDV October 01, 2017
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