"shake my fist." an expression of anger, outrage, and/or frustration, whether it be comical or serious.
"that mfer cut me off in traffic! smf!"

or

"stay off my lawn you no good whippersnappers! smf!"

or

"i hate you. smf."
by cuntsy March 13, 2010
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Means: "sniff my fart".
A way to insult people to get your fart sniffed.
<Sickness> I hate you maZtah!
<maZtah> smf!
by maZtah June 27, 2006
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"Dude, when I look a that car, I get a smf"
"Whats that?"
"Super mind fuck}, not like your ordinary mind fuck"
by captainrainbowsocks April 6, 2010
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SMF - Scratch Mad Favorites Syndrome. A person who keeps disturbing his favorite person often through text messages, calls etc.
Clara: Peter !! Why do you send irritate me with your texts and repeated missed calls.
Peter: Babe, I am suffering from SMF Syndrome.
by Moulish_Punk March 9, 2014
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My girl friend knew that I was in a bad need of one so she gave me an smf
by CriostoirHulme August 5, 2005
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I'm a 49 year old SMF but not a MILF- I never had kids :-)).
by rigidbar May 22, 2010
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