A 9/11 is a sex act in which a man violently and unexpectedly inserts his penis into the anus of his sex partner. This may occur during or outside consensual intercourse.
When I asked Maria why she broke up with Stanley, she said that he gave her a 9/11 after a night of drinking.
by FetusDestroyer June 17, 2012
A happy family friendly holiday
Man 9/11 sure was a big bang!

9/11 flew by so fast and hard
by The ass crack bandit September 20, 2014
When Al Qaeda terrorist bastards hijacked planes and crashed them into the Twin Towers, the Pentagon, and nearly the White Whouse. Over 2,000 innocent Americans died that day.
Remember 9/11.
by never forget September 10, 2012
national bring your plane to work day
guy 1: "Hey, you know it's national bring your plane to work day on 9/11"
guy 2: "Yeah? Where do you work?"
guy1: "World trade center"
by rapey maximus September 11, 2010
The day in 2001 that a major tourist attraction in New York City suddenly became a major terrorist attraction, which later became a major tourist attraction. Washington, DC, was also affected by this phenomenon, but to a lesser extent.
Look at all the hucksters at the 9/11 Museum. Disgraceful.
by Nudnikdude October 22, 2015
November the 9th in some countries
-"dude, when in November is that damn biology test?"
-"i think its on 9/11"
by SareehTube May 25, 2010
What bush did
Bush did 9/11
by Grizzy McNiggz January 26, 2016
An inside job.
Jerry: What did Bush do, again?
Gary: He did 9/11
by Saint Nicholas Cage May 28, 2015

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