'tis when a woman's nipple gets real claustrophobic and sticks its head out for a deep breath, while the woman does not notice at first. This is very common with actresses. Their nipples get nervous a lot, and need some air sometimes. A lot of the time, they stick their head out, and decide that they like all the attention so they linger longer than needed. This usually causes embarassment.
When Tara Reid was on the red carpet, she experienced a nipple slip. Luckily a friend nearby helped her out, for she was unaware that her nipple was getting more attention than her the entire time.
by Jack Daniels January 06, 2005
by Ian Gammon February 19, 2004
A form of wardrobe malfunction, where a persons shirt/top moves in a way that causes one's nipple to be exposed
by Jakeyrol April 09, 2019
When a woman claims to have accidentally exposed one or both of her breasts but subconsciously she really wanted everyone to see her tits.
by CockFrobbler October 14, 2011