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

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

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

I.H.B.P.F.J.A.S.T.M.N.E.Y.N.E.D.M.M.K.Y.A.M.A.I.T.T.R.T.D.I.Y.A.N.W.M.T.Y.A.M.E.O.A.S.D.I.A.I.W.D.W.I.M.Y.W.T. 

“I have brought peace, freedom, justice, and security to my new empire.”
“Your new empire?”
“Don’t make me kill you!”
“Anakin, my allegiance is to the Republic, to democracy!”
“If you are not with me, then you are my enemy.”
“Only a Sith deals in absolute. I will do what I must.”
“You will try.”

I’m not retyping that so I’m just gonna copy and paste: I.H.B.P.F.J.A.S.T.M.N.E.Y.N.E.D.M.M.K.Y.A.M.A.I.T.T.R.T.D.I.Y.A.N.W.M.T.Y.A.M.E.O.A.S.D.I.A.I.W.D.W.I.M.Y.W.T.

I.H.B.P.F.J.A.S.T.M.N.E.Y.N.E.D.M.M.K.Y.A.M.A.I.T.T.R.T.D.I.Y.A.N.W.M.T.Y.A.M.E.O.A.S.D.I.A.I.W.D.W.I.M.Y.W.T. by Big dumbus January 24, 2021

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