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When it looks like you have one massive breast. This usally happens when a girl wears a sports bra or one of those tank tops with the shelf bra.
The guys at the Gym like to stare at my uniboob.
uniboob by Emily Z. April 3, 2006
Condition when a woman wears a tight lycra fitted tube top for exercising and looses form of two boobs to just one
Check you the girl with the uniboob.
uniboob by Chevyfan October 31, 2003

unibonger 

In short, Chong from Cheech and Chong. Nickname from when he was in prison for selling waterpipes. Cheech said it on the food network while cooking with Rachel Ray.
"Hows Chong doing?"
"Oh hes doing fine, the prision inmates even gave him a nickname...the UniBonger."
unibonger by Ferliage September 8, 2008
When a woman's bra isn't very supportive and doesn't separate, squeezing the boobs together, thus forming the appearance of one large boob. This usually happens with sports bras.
She needs to go to Victoria's Secret and fix that uniboob!
Uniboob by Kristina5979 April 29, 2008
When a larger chested woman wears a sports bra it is tremendously restricting. It is described as -- A large lump of two breasts squeezed together by the wearing of a sports bra. The end result is that the woman's breasts no longer have the "Lift and Separate" affect. Therefore causing the appearance of "One Boob".
Have you seen the new girl? ....She always has a serious case of uniboob...
uniboob by Rock\m/On89 September 1, 2010
he is die
Unabomber is die
Unabomber by tomobs June 10, 2023