On June 23th you have permission to fuck any of your best friends weather they be male, female, non binary, trans female or trans male, ECT.
You can go up to your best friends and say "its national fuck your best friend day" and they have to let you smash and the same goes to you.
by Femmeep420 June 21, 2021
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on April 14 you have the right to fuck any amount of people who say they are your friend
I cant wait to shag my friend Tim again, tomorrow its national fuck a friend day again
by April 14, 2021
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national fuck your friends day. today you find your closest most trusted friends and have sex with them.
(one person) wow today is national fuck your friends day -june 26th. I guess we have to have sex now.

overruled if the person(s) decide to strip 4 articles of clothing voted by the majority instead for 5 minutes.
by sexytime696969696969 June 26, 2021
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June 21st. The day when u and your best friend get in bed and you know..fuck
"OMG WHY ARE U TAKING OFF YOUR CLOTHES?!!?!"

"Its National Fuck your best friend day!!! Get on the bed"
by Im_gay_for_the_egg June 20, 2021
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