an acronym to let someone know that you are shaking your fist in joking anger. This can be thought of as going along with the phrase "why, I oughta...."
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!!!!"
By Claresta
SMFS
Save My Fucking Seat.
What you say to your "friends" when you get up at a party to go get some more beer.
Asshole #1: "Go fill my kegcup."
Asshole #2: "SMFS"
