Non Casual Friday 

The opposite of casual Friday with regards to clothing attire. Business casual in sense of the traditional carefree jeans and a T-shirt outfit.

I walked into class looking like I just came from an interview but I thought to myself no it's just non casual Friday.

Non Casual Friday by Business casual guy September 17, 2010

Casual Sex Friday 

the day of the week when you get blackout drunk and have sex with random strangers because you cant get pregnant.

please note: this does not make anyone a slut, cause when you cant remember it, it doesnt count!

Q-what are you doing tonight?
A-it casual sex friday what do you think

Casual Sex Friday by founderofcasualsexfridays October 22, 2010

Causal Friday

(n) A Friday that is meant to be all things Friday, i.e. wasting time at work, leaving early for happy hour, and closing down the bar.

"Dude, after work today let's go out to the bar for a causal Friday."

Causal Friday by doingthings November 25, 2014

Casual sex fridays 

casual sex had at the start of the weekend that doesn't involve any dressing up or fancy meals.

"God, my workplace is adopting that casual fridays thing. I'm going to have to see my boss in JEANS."

"Really? Let's go to a pub afterwards and get us some casual sex fridays."

Casual sex fridays by Tcakes February 21, 2010

CasualFriday 

Someone who like underage kids that are drawn (lolicon). Isn’t funny and might actually be gay. Referred to as a “Casual Moment”.

“Hey dude I just sucked a guys dick.”
“Ok CasualFriday.”

CasualFriday by SadlyItsE January 30, 2021