C-day 

The date of a crips birthday.

Random nigga: That nigga walkin round like he own this bitch

Crip nigga: It's his c-day nigga

C-day by Bruh-what? January 21, 2020

Singles Awareness Day 

February 14 (valentine's day, of course, for those who are in a relationship) For those without a significant other, the advertisements, cards, flowers and attention given to this particular day make one acutely aware of one's lack of couplehood.

For Singles Awareness Day, I bought myself great chocolate, sexy heels and a new pair of earrings. It helped me avoid the desperate action of finding a man to date just so I wasn't alone on V-Day.

Singles Awareness Day by saint paul girl February 6, 2010

National kiss your girlfriend day

April 19th. You can kiss one or all your girlfriends

It National kiss your girlfriend day

National kiss your girlfriend day by Smoker101 May 25, 2018

National Fuck Day 

A day where all you do is fuck. Just enjoy.

Oh man, I am so psyched for national fuck day!

National Fuck Day by YEAHHHH!22222222222222 March 7, 2011

Send nudes day 

30th april is send nudes day. Girls and boys will need to send nudes to each other

Boy: send me nudes
Girl: What no
Boy:But it send nudes day
Girl: Oh oki

Send nudes day by IceDanny April 30, 2019

League Day 

A league day is when one sees his girlfriend or her boyfriend naked for the first time, or completely naked.

Kelly and I had a league day yesterday.

League Day by Charles2221 June 11, 2007

fiing day 

(fing)
acronym for Fuck It I'm Not Going day
taken simply for the reason that you don't want to go to school, work or so on....
see also mental health day

alarm blares
man smashes it with sledgehammer, "Screw work, I'm taking a FIING day"

fiing day by eriCartman December 29, 2007