a day in which a person (most often a teenage girl) wears sweatpants, with her hair up, and no make up. these days are most common after a late night, a break up, or paired with a hangover.
it is best to not mess with a girl on these days, she will attack.
Oh no! She's wearing sweat pants. It must be a sweatpants day! Don't mess with her.
by anonnnnnnnonon January 15, 2011
Get the sweatpants day mug.
On November 15 every boy needs to wear grey sweatpants to raise awareness for all single ladies and the day of asking them out.
Boys wear grey sweatpants and ask the girl, boy or person you like out on a date.

Girl: wow he is wearing sweatpants I wonder if he is going to ask someone out.
Wear grey sweatpants day needs to happen
by Yo need love November 4, 2019
Get the Wear Grey Sweatpants Day mug.
October 15th every year. Is national lesbian sweatpants day. Every lesbian is required to wear sweatpants this day and all straights are banned from wearing sweatpants on this day.
Dude: hey look at that fine specimen over there
Gurl: look at what she’s wearing. Do you know what day it is? It’s National lesbian sweatpants day. That right there is MY fine lesbian specimen.
by that_one_lesbian_03 October 21, 2019
Get the National lesbian sweatpants day mug.
The day of February 5 is the official day for boys to wear gray sweatpants 😊 it’s good for the weather and also good for other things
by Maximillian Maximus November 3, 2019
Get the National gray sweatpants day mug.
National Gray Sweatpants Day is October 26th!
National Gray Sweatpants Day- the day to wear gray sweatpants

Make sure you wear gray sweatpants on October 26th especially the guys... ;)
by horselover20 October 13, 2019
Get the National Gray Sweatpants Day mug.