A day where it is acceptable for your significant other to fuck their "best friend." This person can be anyone of their choice but is often an ex girlfriend or boyfriend. It may be played off as "just hanging out" but when they don't come home that night you know what happened.
I know it's your first day off but I am going to go over to Trevor's for best friend day. Ignore why Matt is texting me.
by damit187 July 29, 2017
by NationalBestFriendDay June 14, 2021
NATIONAL BEST FRIENDS DAY. June 8 celebrates National Best Friends Day, a day to honor that one special person you call your “best friend”.
by Shamareon aka Tj May 07, 2019
the day in which you celebrate with your best friends.
most commonly celebrated on the 14th of every month.
created in palmdale
most commonly celebrated on the 14th of every month.
created in palmdale
friend-"guess what"
friend2"what"
friend-"i got you something for best friend day!"
friend2-"im so glad i saved you from that fire."
friend2"what"
friend-"i got you something for best friend day!"
friend2-"im so glad i saved you from that fire."
by tillyen March 28, 2008
by david164 May 07, 2020
Morgan: whens best friend day?
Sophie: best friend day is Jun the 8th but its really everyday
Morgan: i love you bestiee
Sophie: i love you to bestieeee
Sophie: best friend day is Jun the 8th but its really everyday
Morgan: i love you bestiee
Sophie: i love you to bestieeee
by Best friend day October 16, 2020
apparently it’s on June 8th, but I don’t really have friends except your dumbass that always ghosts me.
by nyse^^ June 09, 2022