ninny 

Shortened version of nincompoop, a silly, idiotic person. can be used affectionately.

you went into the girls bathroom by mistake? you ninny!

ninny by Shwaggy November 18, 2003

ninny 

Quite possibly the coolest insult ever. Short for nincompoop, it was used often in Victorian Europe and early North America. Insult of choice for monocole-wearing gentry, and anyone with a bit of class.

My, what a ninny! *monocle*

Ninnies + potatoes = sign of good will?

ninny by Rivviko October 3, 2007

Ninny 

1. An idiot
2. Short word for nincompoop
3. Someone who is afraid of everything and has no courage; see pansy

You are such a little Ninny!

Ninny by Turd Ferguson January 29, 2004

Ninny 

nincompoop, idiot, moron, Piers Morgan

Piers is a big Ninny

Ninny by SusanHarHar October 3, 2010

ninny 

short for nincompoop, a silly, stupid person. often used affectionately.

you went into the girls bathroom by mistake? you ninny!

ninny by Shwaggy November 18, 2003

Ninny 

a breast on a women's chest, boob , titty,

"Why are you touching my Ninnys"?

Ninny by quare332 December 30, 2011

Ninny 

A cute name for someone without using a real swear word 0_0

Nick: In My face you Ninny!
Ebony: Ninny? AHA you douche.

Ninny by Sweetener January 4, 2011