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a uni-bra is a bra that sandwiches two breasts together and eliminates definition between the two breasts, making it appear as one big mound in front
greg: dude, did you see that girl?
justin: it looks like she only has one boob, she must be wearing a uni-bra

greg: yeah well that means i can do her and eat a pizza at the same time
by Mamma Mau November 03, 2009
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