SMF

The white alternative for the popular SMH (shake my head) that was created by black people. SMF stands for Shake my Finger....

guy friend 1: lets go grab a coke and see a ballet
guy 2: SMF youre super gay

by thewhitemagician June 14, 2011

SMF

Quite simply, it is an abbreviation for
Sick
Mother
Fucker.
Such a person is despicable and warped and does things no sane or decent person who do. Also, "SMF" is an 1984 song by Twisted Sister. The song's words do not explain what the abbreviation means.

Slobodan Milosevic's generals are responsible for the rape, mutilation and sadistic sexual bondage of women and girls, as well as herding men and boys in concentration camps where they were forced to do sex acts on each other, drink piss and eat shit. The males either starved or were beaten to death. Numerous gross abuses were commited under Slobodan's orders. He and his military leaders are war criminals as well as a bunch of SMFs.

by I Saw U2 Live Twice December 10, 2008

SMF

Shaking my forehead. A variation of SMH (Shaking My Head). Especially relevant to those who have big foreheads.

A- Sorry I can't hang out tonight I'm watching TV.

B- SMF, you always do this'

by E017 October 22, 2016

smf

Slapping my forehead

Crap. I forgot to bring my books. Smf!

by ThatAtheistWithA53/4Inch December 20, 2010

smf

Acronym for stupid mother fucker, often used in conjunction with l33tsp34|<, or more commonly, simply as a friendly expression used during internet chat or to spam message boards

My roomate just walked in and puked on his bed. What a smf.

You locked yourself out of your car! SMF!!!111one111

by m4wk July 16, 2004

SMF

acronym for "shank my face" or "shank me in the face". commonly used to express disappointment.

person 1: "dude i just found out we have a math test today.."
person 2: "ugh SMF"

person 1: "ew here comes Vickie.."
person 2: "SMF"

by psychologicalromance December 24, 2010

SMF

a "Sexy Mother Fucker." only the cream of the crop have the honor of becoming an SMF. It is an exclusive organization and membership is based on invite only

The warcry of the SMF: "SMF on three, one...two... three... SMF!!!

by WackoJacko January 25, 2005