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Noun.

1. In art, a singular curve/line/lump of breast used to represent two boobs under clothing.

2. A single mass/breast where two should be, but not where two were originally (if you loose one boob, its not technically a uniboob). A uniboob is the presence of an original single boob.
I was in a rush, so I gave the women in my drawing uniboobs.
by Arthoes December 21, 2007
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When The Space Between the boobs is less then a fingures with (having only one boob.)
Alexa is good at tittie fucking,yea she got a uni-boob
by Trey G May 31, 2003
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When a female wears a top or undergarment that makes her breasts come together to look like one large breast.
Oh my gosh, that tube top totally gives her a uniboob!
by ScrapperMomx3 March 08, 2013
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An insulting adjective to describe a female who when the mathematical appreciation of her breasts (the summation of the volume of both) is barely enough to fill a small cup size.
Erin is a uniboob. She has to wear a negative cup size or her bra backwards to appear normal.
by SoYouWantToHaveThisArgument March 18, 2009
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The awkward lump formed by a zippered sweatshirt when you sit down. Categorized as a uni-boob when the lump is at your breast area. Can also be at crotch area forming a regular boner on a male and a lady boner on a female. Also a stomach boner when the lump is at your stomach. Obviously. So much "excitement"...
"Stupid sweatshirt is giving me a stomach boner!"

"If you unzip it halfway then it'll go away."

"Well now I have a lady boner."

"Better than a uni-boob!"
by alicejin88 November 15, 2011
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