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9.
Used as a verb. To destroy something with the force of two Boeing 747's crashing into the country's two biggest skyscrapers.
B: Yo, I saw that bitch-slut girlfriend of yours cheating on you with Rolfo at the National Dry-humping/Freaking Dancer's Association of Long Island Formal.
C: STFU!!! I'm totally gonna nine-eleven her face!!

M: Yo, dude, I got totally wasted last night and I totally nine-elevened my car into a mailbox!
Y: Oh snap!
by Rolfo5800 July 22, 2008
 
1.
(as a verb)

to deliver a severe punitive punishment to someone

Can also be written 9/11 (but not so good).

Any more trouble from you, fatface, and I'll nine-eleven you.
by Edna Sweetlove October 01, 2006
 
2.
A simple phrase connoting the desire or need to depart from the current location; usually followed by a response of "Let's roll." The importance of such an action can be magnified by the individual orating both portions of the clause as in "Nine-Eleven; let's roll."
Approaching time to go to class
Gentleman 1: "Nine-Eleven?"
Gentleman 2: "Let's roll."
-or-
At a horrible party
Gentleman 1: "Nine-Eleven; let's roll."
Gentleman 2: nods in agreement
by DocF August 19, 2006
 
3.
to totally demolish sumthin
"i just nine-eleved your ass"
by the dark angel January 10, 2005
 
4.
A simple phrase connoting the desire or need to depart from the current location; usually followed by a response of "Let's roll." The importance of such an action can be magnified by the individual orating both portions of the clause as in "Nine-Eleven; let's roll."
Approaching time to go to class
Gentleman 1: "Nine-Eleven?"
Gentleman 2: "Let's roll."
-or-
At a horrible party
Gentleman 1: "Nine-Eleven; let's roll."
Gentleman 2: nods in agreement
by DocF August 18, 2006
 
5.
1. Verb To seriously damage/hurt unexpectedly, and afterwards try to recollect pride in oneself.

2. A stronger form of "Pearl Harbor"
Man 1: So I hear you just got out of jail? From how you're walking, you must've gotten Nine-Elevened hard!
Man 2: I don't wanna talk about it...

Girl 1: Oh my God, are you okay? What happened?!
Girl 2: I was just Nine-Elevened in the parking lot! *tears*
by whatsapseudonymman September 05, 2011
 
6.
September 11th, 2001.
"Ever since Nine-Eleven there's been nothing but mass censorship and stuff."
by Dave January 15, 2004
 
7.
A legendary sports car made by Porsche. See 911.
Teh terrorist attacks are referred to as September eleventh, not nine-eleven.
by sasabune February 28, 2006