When two gay males or females are having anal sex in midair.
George: "Look what's in the sky!"

Fred: "Oh my god their having flying gay buttsex!"
by Bub537 September 23, 2009
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Surprise Trombone Buttsex

Where trombones yell surprise buttsex and bang their bells together so that the noise echos in the room. Before engaging in trombone buttsex it is encouraged to lube your self up with cream, slide-o-mix, water, or all of the above.

Usually gets strange looks from everyone in the room.

It doesn't have to be with the brass trombones, because trombone is also a code word for boner. It is possible for a man and a women or a man and a man or even a women and women (if parts are there) to engage in surprise buttsex.

just go up to the partner, yell suprise, and pull down your pants and their pants and in engage in angry buttsex without lube.

Lube is optional but if u want to feel anything tmrw use it.
horny man 1: What sex?

horny group: Butt sex!

horny man 1: What sex?

horny group: Butt sex!

Together: Surpise Trombone Buttsex!

(then procede to engage in buttsex or trombone buttsex)

horny man 1: hey

girl 1: hey

horny man 1: Surprise Trombone Buttsex!
by creatorofsuprisebuttsex October 4, 2009
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This term first originated on a private World of Warcraft RP server when it got messed over and stupid people got to play Dragons. There were some ERP freaks amongst them and basically all they did was have crazy lesbian dragon buttsex, even though some of them had other duties such as GMing. When the original server went down the biggest lesbian dragon buttsexer even made his own server to have lots of lesbian dragon buttsex all over the place.
by Leo Head June 27, 2009
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The act of having rough anal sex with someone's mouth, which usually results in ripping of the lining of the roof of the reciever's mouth. It is generally a rough but very sensual act, most likely followed by ejaculation into ones mouth. If performed correctly the ejaculate tends to leak out of the nostrils; not to be confused with a "candy cane." There are two possible ways to begin the act of mouth buttsex. 1. Start by ramming the sphincter of the proposed receiver. 2. Being you start the oral buttsex flaccid, as the erection occurs you begin to ram the receivers mouth as roughly as non-fatally possible. Circular motions of thrusting are encouraged during the act. If the "thruster" can maintain an erection after ejaculation into ones mouth, it is common courtesy to proceed with normal anal sex following the oral buttsex. As is "making out." As with wine it is usually an acquired taste, but once approved by both parties, it becomes very pleasurable for all involved, and has potential to bring the participants closer than ever during, and after the act has finished.
"Dude Kelly totally let me have mouth buttsex with her last night, I was thinking about breaking up with her, but tomorrow we are going to pick out some engagement cock rings"
by The official oral buttsex pro October 27, 2013
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Time traveling Buttsex
1.The act of one or more people engaging in anal inter course while traveling through the space time continum.
2.The most confusing question know to man......EVER
Luke was confused when Brady asked him about time traveling buttsex.
by funnyrussian October 11, 2011
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1.) A direct and effective way of propositioning a potential sexual partner for intercourse of an anal nature. This method never fails.

2.) An indirect manner in which to determine whether or not a male is of the homosexual preference.
Man: "Hey, baby. Parlez Vous Buttsex?"
Woman: "Chaaa! Only like... all the time!"
by Dendralis-Sama May 27, 2008
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There is an ice cream called "Fudgey the Whale", and this derives from that.
The meaning of "buttsexing someone's whales" is sort of unknown, I imagine it probably is sort of like pwn or own.
I'm going to buttsex your whales.
by FlyEvolution July 29, 2004
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