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'Straight Best Friend'. For Gay people who have a best friend who is straight as a ruler ;)
Girl: OMG Your are my GBF!

Gay Friend: And your my SBF!
SBF by smokeajeffrey October 27, 2014
Related Words
SBF SBFF SBFUF SBF (Snotty Bitch Face) sbfbff SBFC SBFFFF sbfffl SBFFWB SBFM
"Retarded crypto investor Sam Bankman-Fried is a small, bitch faggot. SBF_FTX"
SBF by Stuart Pidbitch November 14, 2022
Single Black Female; an expression typically found in personal ads.
Hello, SBF looking for a relaxing and pleasurable time...
sbf by Repetitive Redundancy July 2, 2006
Surprise Butt Fucked. When you don't see butt sex coming. Its not rape, its surprise butt sex
Dude: I saw that guy on tv get sbf
SBF by Jenyen January 7, 2011
acronym for "Shes Beast Fool"
It can pertain to an ugly girl, ugly car, or all things ugly.
"This fat chick, Jen, SBF!"
SBF by NO DIC3 December 8, 2009
Short for "silent but funny" in Internet chats. Used as an alternative to LOL, where something is funny, but is appreciated without actually laughing out loud.
Bob: Dude, my gf made me shave all over. Now I can't stop itching.

Jim: sbf - nice.
sbf by Bacon Curlers October 1, 2009