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
Get the National fuck your best friend day mug.John: Hey best friend
Ashley: Hey whats up?
John: Its National Fuck your Best friend day
Ashley: Ok lets do it
Ashley: Hey whats up?
John: Its National Fuck your Best friend day
Ashley: Ok lets do it
by PRINCEMEL10234 June 7, 2021
Get the National fuck your best friend day mug.by Jenrndudje November 15, 2021
Get the National fuck your best friend day mug.by Rafeeki April 21, 2021
Get the Fuck your best friend day mug.by Gym bro kyle August 14, 2021
Get the National fuck your best friend day mug.by Stdclanjsp November 19, 2022
Get the fuck your male friend day mug.