nipple shirt 

when a shirt is so tight that we can see the persons nipples. It is very visible and can be seen about 30 feet away from the person wearing this.

holly shit did u see antos nips in the fuckin nipple shirt!

nipple shirt by Anita Whore May 11, 2008

shirt nipple 

when you pull on a shirt of a certain material, causing a section of it to stick out and stay that way until smoothed out.

Person 1: "It's so hot out my shirt keeps sticking to my stomach" *pinches / pulls bottom of shirt out*
Person 2: "Now you have a shirt nipple"

shirt nipple by -lori- June 1, 2010

New shirt nipples 

When someone forgets to iron out the creases that intersect at the nipples on a new dress shirt. They are seen most often at weddings and other formal events where people who rarely dress up are forced to.

"Check it out! Terry forgot to iron out his new shirt nipples!"

New shirt nipples by Plan February 5, 2013

nippleshit 

a derogatory term for a dumbass bitch

“Baylee, quit being such a fucking nippleshit”

nippleshit by Pinky-a-Ring July 4, 2019

nippleshit 

adjective; can be used as an insult to someone, usually not regarded as derogatory, but playful.

"Hey, ya little nippleshit, get your ass over here!"

nippleshit by le chat triste July 23, 2003