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12.
In the world of The Sims 2, this word is a euphemism for sexual intercourse, in a very generic sense.

Game characters will actually do a dance in which they twist and contort their necks, backs, arms, and legs in ways which would be either very painful or impossible in real life, but which allows the game to have an ESRB T rating whilst still creating the illusion from the partially-obscured woo-hoo-capable object are engaging in something closer to a more realistic sexual position.

In the Simlish language, the term "woohoo!" is used more or less the same as in English, to denote sudden pleasure or pleasant shock. In-game, the act and phrase are both accompanied by the couple making noises, including cat shrieks, dog barks, truck horn noises, and even a female orgasm purr; usually accompanied by magical chimes to indicate pregnancy.

In the world of the game's community, the term has taken the place of "Play in Bed," a term borrowed from the original Sims that did not cause pregnancy in that game. Unlike the original Sims, Sims 2 partners will only woo-hoo in their underwear, unless a hack is applied telling them to do it in the nude. Such hacks are only now available on adult subscription sites.

The related sexual content to the "woo-hoo" feature has been the cause of much controversy, as there is argument over exactly how much sexual content is appropriate in a T-rated game.

"Woo-hoo"-ready objects include the Love Tub, any double bed, and most cars, as well as changing rooms in the shops.

The term was further popularized by its use in the seventh episode of The Strangerhood by Rooster Teeth Productions, where Catherine offers to bang Dutchmiller using the term.
Gal: "What? Why does it say 'woo-hoo' on the screen?"
Guy: "Oh. That just means that those two Sims want sex."
Gal: "But they're not even in love, let alone married!"
Guy: "That's because I installed LizzLove's Swinger's Bed Hack when you weren't looking, now they'll woo-hoo just as long as they're of legal age."
Gal: "Jerk."
by ObscuredOne March 20, 2007
 
1.
A term for "sex" in the Sims 2 simulation game. In order to keep it rated "T" for teen, Maxis needed to use "woohoo" instead of "sex"
Brandi and Daniel woohoo'ed in the hot tub.
by Megan April 18, 2005
 
2.
Extreme satisfaction. There is really no other way to say it. Famous from use on The Simpsons.
I just got a hundred cars for free! Woohoo!
by .thieved April 21, 2003
 
3.
A. A word in Sims 2 that is used to represent 'sex'
B. A word that may be said when something good has happened.
My Sims did a woohoo.

Woohoo! I finally won the lottery!
by Rhonda Smith January 10, 2008
 
4.
A term used to convey ones excitment
"I'm going out tonight!! Woo hoo!!"
by Anonymous April 09, 2003
 
5.
A word used when you are overly excited, hyper, having fun, or when something great happend to u. You can also use this word repeatedly when you are bored and want to annoy someone. Also this word is used in Sims 2 which means SEX in the game.
dudette: WOO HOO!
dude: anyways..i aced my math test today WOO HOO!!
dudette: woo hoo!
dude: im going to have fun tomaro at the mall woo hoo!!
dudette: woo hoo!
dude: STFU
dudette: sorry i just drank 2 redbulls and im hyper and excited because my sims are about to woo hoo! oh yea and im bored.....and i love annoying u :)
by Krystine!!! September 15, 2006
 
6.
New Christina Aguilera song featuring Nicki Minaj.

Her special name for her vagina.

The new sound of summer 2010.

You know you really wanna (hey)
Wanna taste my (woohoo)
You know you wanna get a peak
Wanna see my (woohoo)
You know you wanna put your lips
Where my hips are (woohoo)
Kiss all my (woohoo)
All over my (woohoo)
Damn, look at that! I bet she has a glorious WooHoo.

Licky licky yum yum. WooHoo!
by strangedreamer May 09, 2010
 
7.
Term used in Sims 2 as Safe Sex
" I really want to Woo Hoo with that hott guy!"
by haley February 15, 2005