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
verb, pronounciation (to nine-eleven): to lie to somebody, partially telling the truth with the purpose of deceiving somebody.
When your girlfriend comes back from a holliday, and you suspect her of cheating on you, you say:

Listen up, you better tell me what happened and don't even try to 9/11 me!
by ErikZ October 14, 2006
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
9/11 marked the begining of what george bush senior calls "new world order". 9/11 was an inside job and was planned and executed by members of the busch administration, cia, military and other government agencies. i know this sounds crazy but think about it. how could 19 towel heads take over 4 planes, TURN OFF COURSE FOR ALMOST AN HOUR,manage to waltz into the most protected airspace on the planet ( the pentagon ), and just manage to fly planes into buildings without being intercepted by military jets. seriously, theres so much more to it. i suggest you watch "Loose Change Final Cut" or "9/11 Ripple Effect" both found on google video. doesn't matter what your beleifs are, watch these vids and you will see that 9/11 wasn't as advertized.
- 2 drone (fake/disguised) planes with extra equipment attached to the bottom possibly a missle or a pod hit wtc buildings 1 and 2.
- the pentagon was not hit by a plane, but evidence leads to the possibility of a cruise missle
- plane headed for the white house was being tracked by the military but then overthrown by passengers and purposely crashed it into the ground as a sacrifice. although theres no plane to be found in the crater, just tiny bits of plane spread over an 8 mile radius. shot down? dick cheney says no, evidence and common sense says ya.
- 9/11 was a pretext for invading afghanistan and iraq, the government lied about weapons of mass destruction and terrorists. why are we in the middle east fighting?
by KK33VVIINN April 04, 2008
The act of commandeering an aircraft in online Battlefield 3 matches with the deliberate intention of crashing them into the enemy base. Preferably jumping out at the last minute saving yourself but dooming everyone else to a fiery death.
"I'm flying this jet New York style, prepare to jump as I'm 9/11-ing this bad boy right into their base."

"Did you see that? Just totally 9/11-end like 3 people"
by lordbattfield3 December 07, 2011
Shorthand for the terrorist attacks in the United States on 9/11/2001 that caused over 3000 deaths. Many were burned alive! I think this tragedy would have been prevented by a diligent and competent president.
9/11 has also spread hurt all over the planet and it ain't done yet. 9/11 has excused assaults on the U.S. Constitution as well, possibly leading to eventual tyranny or oligarchy.
by Richard Locke Peterson March 03, 2008
9/11 is four minutes before nine fifteen
Jeez is that the time 9/11 four more minutes and it will be a quarter past the hour.
Time to go to the pub to meet my friends and have a pint.
by Iva Boughta DePump September 16, 2005
November 9th
On 9/11 :

313th day of the year (314th in leap years)

1888 – Jack the Ripper kills Mary Jane Kelly, his last known victim.

1938 – Nazi German diplomat Ernst vom Rath dies from the fatal gunshot wounds of Jewish resistance fighter Herschel Grynszpan, an act which the Nazis used as an excuse to instigate the 1938 national pogrom, also known as Kristallnacht.

1989 – Cold War: Fall of the Berlin Wall. Communist-controlled East Germany opens checkpoints in the Berlin Wall allowing its citizens to travel to West Germany.

1921 – Albert Einstein is awarded the Nobel Prize in Physics for his work with the photoelectric effect.

2005 – Suicide bombers attacked three hotels in Amman, Jordan, killing at least 60 people.
by Critical Design December 02, 2009

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