When one or both areolae slip out of clothing or are partially exposed. The [[nipples]] should not be exposed. Recognizable by a pink or red swell of flesh peeking out beneath the clothes. 

This often happens with very [[revealing clothes]], such as [[slingshot swimsuit]]s or [[micro bikini]]s, or because of a [[wardrobe malfunction]], [[undressing]], a [[shirt lift]], or incomplete [[censored|censorship]]. 

If the [[nipples]] are fully visible, tag [[nipple slip]] instead.

h4. See also
* [[nipple slip]]
輪チラ