sgdmf 

In instant messenger stands for "Shit God Damn Mother Fucker"

"SGDMF, my house just blew up!"

sgdmf by L. Barnes August 12, 2007

SMDMF 

Suck My Dick Motha Fucka!

A common abbreviation in MMO's. Usually stated before someone gets shot.

*Team A Guy Captures The Flag*
Team B Guy: "SMDMF!"
*Team A Guy Gets Killed

SMDMF by Technical V Man January 12, 2009

sdmf 

SDMF is a the creation of Black Label Society--a band led by Ozzy Ozborne's guitarist Zakk Wylde. SDMF is a unique hybrid of shared ideals and fan club. The actual acronym is most commonly read out as either "Society Dwelling Mother Fucker" or "Strength Determination Merciless Forever"

I am a SDMF, and do not wear pink polo shirts with the collars up.

sdmf by Yoder March 30, 2005

smgdmfh 

shakin my god damn motha fuckin head

Babe, we still gettin freaky tonight, right?
no, my bestfriend's cat just died
so?
SO, I have to be sad for her and I can't do that while having sex with you. Geez, you're such a pig! Go sleep on the couch!
smgdmfh!

smgdmfh by Gynerbajinables January 2, 2011

sdmf 

Stands for:

STRENGTH DETERMINATION MERCILESS FOREVER

Used by american soldiers during WWII.

i guess you could see SDMF written on helmets, patches or tanks,etc during WWII.

¨Krauts in the open! C´mon guys SDMF with those nazi bastards!¨

sdmf by _goatboy_ April 10, 2006

SDMF 

Strength, Determination, Merciless, Forever.

When heads roll, the more the better: SDMF.

SDMF by Matt Stairs April 23, 2008

SMGDMFBAH 

shake my God damn motherfucking bitch ass head

Croatia: we lost the world cup finals

Croatian Citizens: SMGDMFBAH

SMGDMFBAH by Jasian1028 September 9, 2019