Shirtday

The length of one shirtday varies between 7 and 10 full days. A person (usually a gamer) wears one t-shirt for this amount of days. In order for a time period to classify as a Shirtday, one shirt must be worn at all times; includes sleeping. The shirt may be taken off during bath time, but only once during this period. This, however, doesn't usually happen and is a rare occurance.

This was like seven or eight shirtdays ago ~Asmongold

Shirtday by ZickZak October 29, 2020

Hawaiian shirt day 

Hawaiian shirt day falls on April 21 of every year, so you know if you want to go ahead and uh, wear a Hawaiian shirt and jeans.

Will: Hey Eric why are you wearing that ridiculous Hawaiian shirt?

Eric: Dude it's April 21st, how did you forget about Hawaiian shirt day?

Hawaiian shirt day by WilliB April 21, 2013

shitday 

where you've had a really bad day and feel really grumpy.
normally you take it out on friends by shouting at them or blaming them.
some like to cry.

somebody just shat on my mums grave. this has been such a shitday.
or the dog ate my homework than shat it out on my pillow. this is going to be a shitday i can tell.

shitday by Jake White February 5, 2008

National no shirt day 

January 31, 2019 is National no shirt day.

It’s National no shirt day. Celebrate by not wearing a shirt today

National no shirt day by Farmdude26 January 31, 2020

National White Shirt Day

National White Shirt Day means wear a white shirt to support friends that wear it.

Hey why aren't you wearing a white shirt today? Why do i need to wear a white shirt? Didn't you hear it's National White Shirt Day.

National White Shirt Day by NationalBanniday September 19, 2021

over-sized shirt day 

Over-Sized Shirt Day allows girls and women to wear shirts as a dress. This day is June 24! Many girls like to do this.

example: get your dads shirt and wear it as a dress! And tell every body its over-sized shirt day so that they can join

over-sized shirt day by omg fashion girl June 24, 2018

national tuck in shirt day 

Tuck your shirt in on 16 of March

Today is national tuck in shirt day

national tuck in shirt day by National tuck in shirt day December 21, 2019