Bsffr is telling someone to be deadass, mostly said to stupid people.

Bsffr: you know what that stands for? BE SO FUCKIN FOR REAL.
For ex; Person 1: 'OmG I LUV DAHMER HE'S SO FINE😍' Person 2: bsffr.
by usagi's hair strand November 10, 2022
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Basically like tellin a bitch to b deadass but wit a lil spice

Mia: soo.. bitch I went back to my ex..
Rihanna: bro I will beat tf outta u bsffr
by youwillnotlast5minutes September 4, 2022
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"be so fucking for real'
"Girl he fine as fuck"
Friend:" Bsffr he ugly as fuck"
by Kasi'anndraa March 11, 2023
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