When a woman's nipple (aereola) becomes visible while clothed. This usually occurs when women are wearing low cut tops or dresses.
Did you see that pretty country western singer busting a nip while presenting an award at the Country Music Awards?
by Nutsack McCluskey September 10, 2006
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1. means to screw up something

2. an expression saying u hurt ur nipples
I busted my nips when I falied that test
by Anish Mohan January 13, 2009
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