A fork of Rural Dictionary
An abbreviation for "so much fun". The antonym of FML.
Man: Where were you last night. Man 2: I was at a karaoke bar. SMF.
Abbreviation for Sick Mother Fucker
Sarah: I just drank ten Snapple teas!!!! Leah: you smf!!!!!!!! *Vulcan sign*
Acronym for "Shake My Fist" When something is so ludicrous that a simple shake of the head will not suffice. Geared towards actions that incite slight anger and/or annoyance.
GIRL 1: "Say whaaaaaaat? Did you hear that Arnold banged his maid, fathered her child the same week he had his own with Maria, AND took her along on family vacations? Shouldn't he just go DIAF?" GIRL2: "Agreed. ROARRRR, SMF!!!!"