May Day 

A Washington College tradition, starting back in the 1960's, in which people get naked and dance around a flagpole on the campus green. If that wasn't enough, think about the hundreds of people who stare and watch like perverts.

I saw Joe Blow taking a piss infront of a PS officer on May Day!

Why are there always more guys naked than girls on May Day?

May Day by Random Naked Girl May 13, 2006

may or may not have 

an unnecessary phrase that precedes a story or a bragging statement.

most often used by people who are trying to sound mysterious/coy/cool, but it simply annoys the person they are talking to.

sometimes followed by "but definitely did" to make the phrase twice as useless.

Nerd: I may or may not have, but definitely did just solve the math problem first.
Normal Person: You're annoying, shut up.

Caitlin: I may or may not have met Miley Cyrus yesterday!
Mike: What do you mean 'may have'? Did you or didn't you?
Caitlin: I did!
Mike: Well you could've just said so.

may or may not have by Polly Pissed-off-in-Physics November 20, 2011

May 3rd 

May 3rd is National grab tity day

On this day you can grab your special someone’s boob

Sean: it’s May 3rd, you know what that means!
Mark: I’m gonna grab my gf’s boob!

May 3rd by My boyfriend is hot April 22, 2019

May 20 

National shut the fuck up and suck Sergio’s dick day!

Hey why didn’t you talk to me yesterday?
Because it was May 20th and I was sucking Sergio’s dick!

May 20 by thenoob72 May 31, 2019

May 4 

National eat booty day.
If things don’t go as planned, it’s also national make out day.

Person 1: How was your May 4
Person 2: It was fucking awesome dude, I ate the whole ass
Person 1: Awe man, I only got to make out

Person 2: Awe dude

May 4 by Heinz_Ketchup May 31, 2018

May 5 

National Hump Day and Slap ass day

Guy: *slaps Girl's ass after he humps her*
Girl: you are lucky it's May 5

May 5 by Dicksucker Golden91623 May 5, 2019

May Day 

1. A Communistic Holiday (When the Russian's used to drive the army though red square)
2. Really tall black ladie in a bond film.
3. Wicken holiday, something to do with furtility

This May Day, the Kent States cops busted our keg party!
This is a wonderful May Day parade.
Ahhhhhhh May Day what a lovly ladie you are.

May Day by john kozlowski October 28, 2005