A slang word used to refer to a policeman in a negative way. An undercover cop.
"Yo look out fellas, we got a niner on our tail!"
by Fetch Me My Coat September 21, 2006

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a man with a nine inch penis
ben is such a niner.
by Colleena nd ben February 23, 2005

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A group of popular girls that are hot and are mean to everyone. They are simply amazing and everyone wishes they were as fetch as them. Jaimie is head 9er. JP will choke slam you. Erin is furious. Ashley will fuck your boyfriend and then kick you and she even has liver failure. Amber will have 5 boyfriends at once. Rome won't talk to anyone thats not listed as a 9er. Tracey will knock you out with her boobs, even without beer goggles on. Chrissy is a bitch and has no soul. Kate you'll never see her ever.
9ers lingo:
"Throw it up for the 9ers"
"Lets fight her in the bagel shop"
"That fucking shit ass crap kicking bitch ass fucker crap shit 9er"
"We wear pink on Wednesdays"
"Niiiiiiiiiiiiiine"
"Firecrotch we hate you!"
"I fucked her boyfriend again last night"
by Im a niner May 08, 2005

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abbreviated version of vagina, but cuter and usually involving some sort of pain
Ow, my niner
Go niners!
by margot March 20, 2003

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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