Unfortunate Nip-Slip 

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.

Patrick: Bro, did you see that? That sight will never leave my mind.
Juan: Damn what'd I miss?
Patrick: I just witnessed an unfortunate nip-slip

Unfortunate Nip-Slip by Cheese34 September 15, 2016

nip slip 

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

Hold up, pause it there. Yup, total nip slip!

nip slip by Anonymous November 2, 2002

Freudian nip slip 

When you mean to flash someone a nipple but you accidentally flash your bait & tackle

He gave us the old Freudian nip slip and we all got a big peak at his one-eyed willy

Freudian nip slip by ManleyGreaseMissile May 12, 2021

slip the nip 

to do work that is needed for a good purpose such as a college, scholarship, or any school in general.

Mom calm down I'm about to slip the nip and then I'll do the dishes.

slip the nip by Raquel Villareal February 19, 2017

Nip Slip 

When a nipple slips in to view.

She walked out on stage with her tit falling out, it was a hell of a nip slip!

Nip Slip by aaron4273 April 15, 2005

nip slip 

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.

She destroyed the nip slip photograph almost immediately

nip slip by anne on a mauz June 11, 2006

tiny nip slip 

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).

she was dancing and had a nip slip i yelled what a tiny nip slip they look like light bulbs!

tiny nip slip by bummyland November 13, 2011