1) A pair of three

2) When three people have relations
Threesome, what I will not do with two other people by involving myself with them.
by DK1990 August 23, 2015
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Noun: A sexual encounter involving one man and two women. Contrasted against a sexual encounter involving two men and one woman - a Gang Bang or Train Ride.
Sally did not consider her husband's advances towards Amy as cheating because the trio regularly enjoyed threesomes
by crew8221 March 9, 2004
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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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A big sex party between Luke, Arki and Zoi which involves drinking, wanking, cock-eating, and lots and lots of moaning! Zoi is in love with Luke but enjoys a nice fuck from Arki as well. Arki is just glad that he gets to fuck the love of his life while Luke is just doing his regular thing except he has some extra tools to use.
Oh it looks like they're doing the threesome again.
by Big Zaddy Arki Papi August 17, 2022
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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 4, 2020
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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 20, 2005
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