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BSF

BSF: Butt Sex Friday's. A day of the week where you exclusive have butt sex/anal sex.
Kyle: what is BSF?
Josh: Butt Sex Friday's

Kyle: Oh, I love BSF!
by RagNasty November 1, 2020
mugGet the BSFmug.

BSF

best sex friend best friend you have sex with
Alt night was great I hung out with my bsf ;)
by Yhnhjk September 5, 2022
mugGet the BSFmug.

Bsf

by Patel56 May 26, 2019
mugGet the Bsfmug.

the bsf combo

when 2-3 people like/liked you and they're all bestfriends (pronounced b-s-f, meaning: best friend).
person 1: "hey I heard that Jake and dave like you alongside with john!"

person 2: "looks like I got the bsf combo!
by ur.mom_ November 25, 2021
mugGet the the bsf combomug.

National bsf day

You have to become bsf with one person
Go up and ask to be there bsf happy national bsf day
by Bsf4ever September 23, 2019
mugGet the National bsf daymug.

Rogans BSF

Referring to Rogans Best Friend, particularly a freshmen that doesn’t like to take the blame for being Rogans sidekick. A fiend that likes to get pushed into lockers. (Rohan-Junior) ( fiendy freshmen)
Example: “Fiend(no name mentioned) why do you blame a junior(no name mentioned) for being Rogans BSF(best friend)
by PandaBoxer000_[ December 12, 2022
mugGet the Rogans BSFmug.

Bsf Forever

Some one whom I go to when I need help. Someone whom I go to for a laugh. Someone whom-is always by my side matter no what. Someone whom I care about the most and twill always the best. Someone who I can argue with and make back up the next day. I love you big head!!!💞🤞🏽
She is my “bsf forever
by Jewel🔮 December 31, 2020
mugGet the Bsf Forevermug.

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