S! D! MF! 

Meaning: Shit! Damn! Motha Fucker!

A popluar guy on youtube named Africano Boi made this video to show the "trials and tribulations we humans experience in our everyday lives.When all you can think of is SHIT DAMN MUTHAFUCKER !"

(I suggest watching the video)

Boi: "I have just cleaned the WHOLE house. Im so proud of myself!!"

*looks around and the house is dirty*

Boi: "S! D! MF!"

S! D! MF! by K.Bueller June 12, 2010

S.D.M.F. 

Society Dwelling Mother Fucker
as in Zakk Wylde's Black Label Society
can also stand for Strength Determination Merciless Forever.

On The Black Label Website they will often refer to their fans as S.D.M.F.ers

S.D.M.F. by Urban Dictionary July 21, 2005

S.D.M.F 

SDMF is an acronym for Strength Determination Merciless Forever. See Black Label Society/Zakk Wylde for details.

S.D.M.F is a way of life for fans of BLS.

S.D.M.F by DanieDarlin May 30, 2006

A.S.A.G.D.M.F.P.B. 

Acronym for: As Soon As God Damn Mother Fucking Possible, Bitch.

I need those 1085 forms ASAGDMFPB!

A.S.A.G.D.M.F.P.B. by Billy January 20, 2005

D.S.M.F.S. 

an acronym meaning: Damn Straight Mother Fucker Shit.

Originally used by Jan Johnson while he coached pole vaulting. He uses it to compliment a good vault. It is versatile, however, and may be used after any achievement (no matter how small).

Pronunciation is just saying the letters with a successful tone.

"DUDE! I just ran 5 miles in 1 minute! D.S.M.F.S.!"

D.S.M.F.S. by bobbythebob December 27, 2009

W.T.D.H.W.G.T.M.F.F.S.S.D.? 

What the damn hell would Gary the mother fucking friendly sea snail do?

Girl: Should we get dinner?

Guy: W.T.D.H.W.G.T.M.F.F.S.S.D.?

W.T.D.H.W.G.T.M.F.F.S.S.D.? by W.T.D.H.W.G.T.M.F.F.S.S.D.? July 11, 2017

G.D.M.F.S.O.B. 

God damn mother fuckin son of a bitch!

"God damn mother fuckin son of a bitch! I can't move, I can't twitch!"

G.D.M.F.S.O.B. by Mike Pissoff November 14, 2003