No Shirts O'Clock 

A point in the night at a party where everyone takes off their shirts.

*people dancing at a party*

Person 1: It's No Shirts O'Clock

Person 2: Hell yeah it is!

*Takes off shirts*

No Shirts O'Clock by ihateshirts6969 October 21, 2011

No Tagged Shirts 

Shirts that really dont have a brand on them.their just sort of a shirt.
These can be bought at low retail stores like goodwill.

American Eagle,*Converse*,abercrombie and other name brand companies are exact opposites.

Devon:did you see tony walking around with that no tagged shirt?

Kevin: lolyeah.

Kevin: he has alot of no tagged shirts u c.

No Tagged Shirts by Converse_Dottor February 17, 2009

No Shirt, No Shoes, No Vortex. 

When a polar vortex ends, and temperatures soar into the single digits ABOVE ZERO so that folks in the heartland start shedding layers of clothing.

Jeepers, 8 degrees above zero feels awesome after that insane polar vortex!

Did you see those barely dressed college students go by?
Yup, it's like they say, No Shirt, No Shoes, No Vortex.

No Shirt, No Shoes, No Vortex. by NeologianPJG February 1, 2019

No Shits Given Phenomenon 

A psychological condition in which a person has so much to get done but instead decides to take a nap.

"Man we have so much to get done between projects, busy work, and finals this week.. I think I'm gonna go take a nap." "Sounds like you're undergoing the No Shits Given Phenomenon!"

No Shits Given Phenomenon by SinfulStudent April 28, 2013

No Shirt Gang 

Reserved for only highly elite no top people in the world. A gang of complete secrecy. If you know, you know or you're just super ripped.

Member 1; No shirt gang for life.
Member 2; It's a lifestyle.

No Shirt Gang by hesmorerippedthanher;) May 21, 2019

No shirt season 

If it's under 65 degrees, it's sweat shirt weather and shirts are prohibited/ not suggested

"It's 63 degrees! Finally I don't have to wear a shirt."
"I love No Shirt Season!"

No shirt season by getyourshirttogether September 30, 2012

No Shirt 4th Quarter

A phenomenon started at Texas A&M University where during the last quarter of a home football game fans participating take off their shirt for the last quarter of the game.

Person 1: "NO SHIRT 4th QUARTER!"

Person 2: *Takes Shirt Off*

No Shirt 4th Quarter by ChunkND October 7, 2009