A very bad word emphasized on an episode of "Spongebob Squarepants" where Spongebob learns a nasty word, presumably the word fuck or shit, or bitch. And cause a fuckload of disturbances around the Krusty Krab. The Number 11 is a very naughty word and whoever says it gets snitched on. Number 11 is the word: "Fuck".
Jim: Fuck! I forgot to save!

Michael: OOOO, you said number 11! I'm telling mooommm.
by TheGayAccount July 7, 2018
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A nasty yet entertaining trick played by men on women (or other men depending on how you are).
Committed in the closing moments of a blowjob, It is the act of grabbing the recievers head and jamming it down on your dick as you cum, thus making them choke/gag, re-routing your cum out through their nose running out of both nostrils. Number 11.
If you need an example, try it.
by Serial T July 2, 2005
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A new term for sex so parents and others, don't know what you're talking about.
"i heard that yesterday Shaunt'e went to Chris-stuff's house and they did number 11'
"EWWWW!!! i just walked in on my parents having number 11 !!!"
by Amayziinqgx3 December 27, 2010
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A hairstyle more commonly known as "The Bowl Cut" or "Mushroom Cut". It is a cheap haircut given mostly to little kids or fashion oblivious adults. The origin for this word comes from the streets of San Francisco, where outside small asian barber shops, a sign showing various haircuts available corresponds to a number chart. The #11 being the bowl cut. This hair/number terminology is Universal in the streets of San Francisco and hair stylists alike.
"Oh my God, did you see that guy?! He totally had The Number 11. What a weirdo!"


"Hi there, could I please get The Number 11? I wish for my hair to look very strange today. Thank you.
by Klexington January 27, 2009
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Walking somewhere on your own two legs that God gave you.

(The legs each represent a "1.")
"Lazy North American mofos are so dependent on their cars they won't even take the frigging number 11 bus 2 blocks."
by SeaBat June 11, 2006
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