Simply stated, it is short for Smoochy Face, an endearing term for a friend who ALWAYS takes pictures of themselves kissing their mate. It is properly pronounced smmmfff.
by Psuedonym for me November 25, 2009
Get the SMFmug. Acronym for SLAPPING' MY FO'HEAD (forehead): Created by Lafyette Travail June 18th, 2024
Used as a way to express:
1. acknowledgement of someone's goof-up
2. Funny expression for saying "a Fiasco"
3. As a funny new OMG when dealing with unruly bad ass kids or grandkids
4. Real expression of frustration when dealing with a Hell-raising or unreasonable person
5. Substitute phrase for Mama Mia, Chihuahua, Jesus Christ (when preferring to not use the Lord's name in vain)
Used as a way to express:
1. acknowledgement of someone's goof-up
2. Funny expression for saying "a Fiasco"
3. As a funny new OMG when dealing with unruly bad ass kids or grandkids
4. Real expression of frustration when dealing with a Hell-raising or unreasonable person
5. Substitute phrase for Mama Mia, Chihuahua, Jesus Christ (when preferring to not use the Lord's name in vain)
Texting#1: Girl, you won't believe this, I forgot to sign the damn paper !
Texting #2: Lmao, SMF !!!!
Texting #2: Lmao, SMF !!!!
by LAFYETTE TRAVAIL June 18, 2024
Get the SMFmug. 
by NO ONE LIKES YOU <3 April 28, 2021
Get the SMFmug. You smf. Whether ur succulent is a matter of opinion. I think the motherfucker part is mutually agreed.
by a1a1a June 10, 2018
Get the smfmug. this means single-mode fiber. A single-mode fiber is a single glass fiber strand used to transmit a single mode or ray of light.
by FiberforData April 16, 2020
Get the smfmug. 