BFFO

Better Fucking Fuck Off.
Used similar to BFF (Best Friend Forever), but used for someone who you really can't stand.

Me: Isn't that your BFF Jamie? I know you just LOVE working with her.

Co-worker: Hell no. More like my BFFO. I never want to see her again.

by PsychicNinja August 22, 2010

BFFOS

Best friend forever.. on sundays

Since we only talk on sundays we're BFFOS.

by MeLlamosFelix March 28, 2008