Top definition
when a person is wearing an unsupportive bra or no bra at all and they get hard nipples. Their nipples show through their shirts also.
When it gets cold, everyone is nippin out!
by Shag me 2 dope January 14, 2008
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2
When a woman's nipples become erect. When a woman's nipples are hard. When a woman's nipples are visibly erect and or hard through her clothing.
She was definitely "Nippin Out" as Her nipples were obviously seen through her shirt.
by Dr. James Bond June 01, 2018
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