Covering of the airways with female (sometimes fat-ass male) breast(s) for an extended period, resulting in Asphyxiation.

A common accident, seen in activities such as motorboating, BDSM, cowgirl stylecoitus and cockboob sandwiches.
As mammary suffocation requires both airways to become immersed and enveloped in plentiful amounts of adipose breast tissue, it usually involves breasts (racks,knockers,bazingas,tig ol bitties, boobies,etc.) of bat-shit epic proportions.

In recent years, popular culture has depicted mammary suffocation in such a way as to emphasize its epicly awesome nature. An unnamed survey reported 9 out of 10 men would give up their left nut, if it meant that their eventual cause of death would be via mammary suffocation.

See also: Hindenburg Disaster, For whom the cowbell tolls, rackout, Hooker Headlock
Jim: "Bro, Helga has such a big rack. I could motorboat those all day everyday."

Bob: "You say that now, but everyone else who's tried ended up dead from mammary suffocation."

Jim: "AWESOME. I'm in."
by Ike21 April 27, 2014
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The subjects mammary glands display an increase in size in reaction to the surgery.
by AcneAndAnthrax November 4, 2014
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A sexual act performed when a man places his penis between the breasts of his partner, and using the hole between the breasts, thrusts his penis back and forth until climax and ejaculation. The resulting semen that often lands on the chest, neck and chin of the female is often referred to as a pearl necklace. Also known as titfucking.
Mammary intercourse can be combined with fellatio to perform a titfuck blowjob.
by AJAW February 19, 2005
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(kō'ĭ-tes - mam-uh-res) n. adj. Sexual union between a male and a female involving insertion of the penis between the breasts. Usually accompanied by rhythmic movements, leading to the ejaculation of semen from the penis in the region between her cleavage, neck and chin. A high-brow description of a sexual act also known as "titty-fucking".

Coitus: Origin, Latin, from past participle of coīre, to copulate.

Mammaris: Origin, mammary 1682, from French mammaire; from Latin mamma "breast," probably from the child's word for "mother."
So Biff. How did it go with Muffy last night?

Fairly well, old chap. Muffy said she was in her "scarlet phase". So, after the cotillion, we did a little coitus mammaris in the back of the Bentley behind the clubhouse. I was a tad annoyed when she used my ascot to clean her "pearl necklace" off.
by Downside Risk January 14, 2010
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A crucial part in a female athlete's physiological makeup in which without, leads to the individual's feeling unsure about herself. In some cases, this feeling can become so extreme that the athlete begins to concoct wild excuses to avoid having to compete for fear of failure.
Bulls fans are hoping Derrick Rose can regain the lost muscle mammary she lost tearing her labia.
by HoboSpider May 13, 2013
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Describes when men " pleasure " themselves after a Girls Gone Wild Video or other event where drunk young college age girls expose their breasts.
Meanwhile at a big spring break party...

Dave: Dude..I'm soooo wasted...
Fred: Yeah man...oh my god shes going to do it!
Dave: Who?
Fred: Surfer tits..you know...surf and turf!
Dave: oh..Oh OH There goes the t-shirt! Look at those righteous tities!
In unison " Yanks for the Mammaries!

Dave goes to grab his crotch but misses and collapses in a drunken stupor.

Fred ,50 years later is visiting Dave's grave site. He thinks to himself "Good times...good times".
by GFeet January 13, 2010
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