A shorten version on Ninconpoop. "Ninny", is used in "Hey Arnold!" and "Rugratz". "Ninny's" most of the time have brown hair and some have double chins. "Ninny's" are laughed at, not with.
"Your a Ninny!"
by Tommy234 February 05, 2011

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Small boobs, that arn't quite boobs yet because they're so small. They're more like mosquito bites.
"damn, that girl has some small tits."
"nah, she ain't even got tits. They mo' like ninnies."
by Jill kajebfa October 23, 2009

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the lower part of the female reproductive tract; a moist canal in female mammals extending from the labia minora to the uterus; "the vagina"
I shave my ninny everyday
by Anna Furb January 07, 2010

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A person who claims to be a fan of industrial music, but really only knows the band NIN and has a sychophantic reverence for Trent Reznor. Will ONLY shop at Hot Topic and thinks usually they are "More-Rivet-Than-Thou".
Me: So, what kind of music are you into?
NINny: Industrial. I am so fucking rivet.
Me: What bands do you like?
NINny: Nine Inch Nails. I LOVE Trent Reznor.
Me. Fucking NINny. It looks like Hot Topic threw up on you.
by ZEROMACHER May 29, 2008

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Another word for nipple
Oh my, you make my ninnies hard!
by Baby Boo March 02, 2005

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nine inch nails fan
any self respecting NINny will own all 17 halos
by siltkwisteddagger August 16, 2003

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1. A insult for kids that worship Nine Inch Nails and Trent Reznor

2. Something more shallow than Mansonite.
"You see that lame ass kid with the spiked up hair and the fuckin' NIN shirt?" *said while taking a drag on a clove*
"Woe is me..He's a NINny." *gets beat up by a rivethead*
by Kevorkian Hallucinogen October 19, 2004

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