sfd

Short for So 'Fucking Down'.

Friend- lets go to the party!
Friend 2- ok sfd!!!

SFD

So Fucking Dead/ded or so fucking done

Dumb bitch: yeah he cheated on me, but said he didn’t mean it, so I forgave him

Friend: sfd you dumb bitch

SFD

Shitting For Diatance
A contest in which participants compete to see who can shit the furthest.

Brad's callipygian team selection looked set to dominate SFD this year

SFD

The game Superfighters Deluxe.

I played SFD so much that I stopped logging into Steam in online mode out of shame once I saw how many hours I put in.

sfd

Sex for day

“I came across this sfd account on Twitter.”
“Oh that’s unfortunate for you little poor thing!”