Define Nip Slip Meaning

When a braless female's nipple accidentaly slips out from under a loose-fitting garment

When a nipple (more often than not, the nipple of a woman) slips out of an article of clothing, partially or fully, and is noticed by someone else.

Seriously. Has nobody ever told these brainless celebrity twats that there exists a garment called BRASSIERE? What kinds of exhibitionist morons go around wearing clothes which might reveal a private body part at any given moment, anyway?

When a female celebrity "accidently" lets her nipple show or has her whole boob slip out. Check pictures of Lindsey Lohan.

When a nipple slips in to view.

To have the nipple showing on accident. Most common in public or on live t.v.

Where a girls nipple peeks out and reveals itself accidentally

When you are doing watever and you nipple decides to slip out of you're shirt and show the world

The unpleasant moment that occurs when a mans "scrumptious hard nipples" appear through his tight shirt. This moment can be made much worse when the man bears "man-titties". This appearance will normally cause cringe, disgust, or hilarity to others.

when a woman has a nip slip and all the men/woman in the room realize that woman has unnaturally big nipples (as big as a light bulb).