by Xxx_OpVirgin_xxX February 14, 2019

by Cabella and Shanna March 9, 2019

Someone who wears the t-shirt/apparel of an event on the day of the event, hence "day of". The person wearing the t-shirt is likely a novice at whatever event is occurring, hence their proclivity to wear their newly acquired gear.
Examples include: some sporting event or race, regattas, marathons, any large group event.
Examples include: some sporting event or race, regattas, marathons, any large group event.
1: Ha look at that kid wearing the t-shirt that registration was handing out
2: I know, such a day of'er
2: I know, such a day of'er
by Andyslaybids May 16, 2019

On October 17th you the reader will dress like your significant other for the entirety of that day,matching with a similar or exact replica of a common outfit they’re known for wearing.
“Why are you dressed like your boyfriend today?”
“Oh didn’t you hear? Todays dress like your s/o day”
“Oh didn’t you hear? Todays dress like your s/o day”
by Youlovecoco October 12, 2022

A day of the week resulting in which you're weak in some catagory. mental , physical, or both. This can cause you to do things you normally wouldn't do or cause you to not do things you normally can.
dude i had such a weak day i couldn't stop flirting with taken girls!
This weak day sucks i couldn't life a 20 pound bag.
This weak day sucks i couldn't life a 20 pound bag.
by jttomaiko May 20, 2010

by Lexi Simmons October 24, 2019

by Hoodiegirl January 15, 2020
