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June 9
The day in which couples (gay or straight) celebrate sex by having sex. The reason National Fuck Day is on June 9th is because 6/9 closely resembles the popular sex position 69.
Honey, today is National Fuck Day! Let's fuck!!!

If National Fuck Day is my half-birthday, does it still count as ABC Sex?
by E-Dog1209 October 02, 2016
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8/6 (August Sex)

This is a day celebrating variety in sex partners, and just going for it.

Remember:

"If you're with someone new, you know what to do!"

This is also a great day to try skydiving, pearl diving, bottle spinning, or just anything you have always wanted to do but just haven't yet.
My hopeful fuck buddy was ready to call it a night, but I said, "Why don't you come on over to my place instead? It's national fuck day!!"
by Jovanzi January 05, 2012
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National fuck day is on the 2nd of August, This is celebrated by couples around the world by well having sex.. t02/08/12 8 is for the woman's breasts and the 2 is for a penis. National fuck day is celebrated by europians
by Heavily world August 02, 2016
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5
On April 29, Couple’s and non couples celebrate this day with hard core sex. It marks the day that several of the planets align and increases sexual drives of both parties.
*planets align.

Person #1. Hey it’s April 29, let’s fuck!

Person #2. Well yeah since it’s National Fuck day.
by National holidays365 May 28, 2018
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