BFFHS

Best Friend For High School. A person that is your best friend now but you know that the second you leave high school you'll never speak to them again.

I'm really going to miss my BFFHS Sarah when we go away to college this summer.

BFFHS by getsum2 May 2, 2010

Bffism 

The many ways (strange/unusual/paranormal/hallmark/cheesy/corny/sweet/loving/controlling) your BFF behaves towards you and your shared friendship of devotion, adherence, usage, characteristic ,state or condition; which designates a doctrine to your referenced designated BFF.

-ism suffix (Greek) - formation of nouns which denotes practice or action from verbs.

Janny: Car - you need to get off your whorish way's on FB!

Car: Janny, thanks for your bffism all these years! Without your bffism, I would not be the same.

Janny: I TOLD YOU! STOP BEING A SLUT!

Car: Awwww - I heart you too! by the way, your bffism stinks!

Bffism by Car Sun- August 25, 2010

The official bffs

This group is owned by patty, leona, Alyssa, kj and blurry

#dude 1: who’s one of ur favourite group member in the official bffs?
#dude 2: mine is patty
#dude 3: mine is leona

#dude 4: mine is alyssa

#dude 5: mine is blurry
#dude 6: mine is kj
Every dude be like: 0-0

The official bffs by Its_p1x1e July 15, 2020

bffsm 

best friends for six months; as coined by Jimmy Fallon and Stephen Colbert

Tracey: Hey can I borrow some money?
Victoria: No way!

Tracey: Oh my god, you are so not my bffsm anymore.

or

Dido: Aeneas is my bffsm because he left me even after our cave sex, to found the Romans.

bffsm by Misenus April 17, 2011

Bffhood 

A form of 'brotherhood' or 'sisterhood' between best friends.

OMG, I love our Bffhood

Bffhood by Meow18 April 12, 2011

BFFHLWL

Best Friends for However Long We Live

SHe was my BFFHLWL

BFFHLWL by KatyNevaeh December 27, 2011

bffls 

pronoucned: biff-uhls
more than one best friend for life

I'm hanging with my bffls tonight, how about you?
We're bffls!!

bffls by that_random_blonde April 22, 2009