S.M.G. 

Sweet¹. Mother. of God² .

Am expletive of admiration and awe, expressing a near-reverence for something of incredible and profound beauty.

1- Definition of ‘sweet’ by tlc: “Adj. An intensive used to express...“
2- Or whatever higher ‘power’ you ascribe to (yes, even if it's yourself or your cat).

Bob (to Chad): ...so the best way to explain it, you have the top number of apples, and take-away the bottom nu... (upon seeing a f#c%ing amazingly sculpted babe in a floss-bikini ) Sweet. Mother. Of God.
Chad: (grunts in agreement) S.M.G.

S.M.G. by pendraggon December 4, 2019

U.S.M.G. 

United States Military Government. The form of administration by which an occupying power exercises government authority over occupied territory is called "military government." For a territorial cession, the military government of the principal occupying power does not end with the coming into force of the peace treaty, but continues until legally supplanted.

In the April 28, 1952, San Francisco Peace Treaty, Article 4b states: Japan recognizes the validity of dispositions of property of Japan and Japanese nationals made by or pursuant to the directives of the United States Military Government (U.S.M.G.) in any of the areas referred to in Articles 2 and 3.

U.S.M.G. by Walter Normberger July 22, 2008

o.m.g.s.s.m.y.l.g.y.e.s.a.g.t.h.w.t.s.g.g.a.b.h.k.a.t.l.l.a.t.p.p.p.p.p. 

stands for “oh my god, Sebastian Stan, man you lookin, good you ever see a guy this handsome walking the streets he’s gonna get arrested because he’s killing all the ladies, look at thet, pow pow pow pow pow”

you look so good today ”o.m.g.s.s.m.y.l.g.y.e.s.a.g.t.h.w.t.s.g.g.a.b.h.k.a.t.l.l.a.t.p.p.p.p.p.”

o.m.g.s.s.m.y.l.g.y.e.s.a.g.t.h.w.t.s.g.g.a.b.h.k.a.t.l.l.a.t.p.p.p.p.p. by anonymous September 20, 2021

S.H.M.G 

So help me God.

am taking the hard way. so help me God(S.H.M.G).

S.H.M.G by emega April 21, 2009

S.M.N.G.B.S 

Super
Mega
Not
Gay
Butt

Sex

What else do you need to know.

Person: ay wanna have S.M.N.G.B.S.?
Other Person: whas dat
Person: lemme show u ( ͡° ͜ʖ ͡°)

S.M.N.G.B.S by PopperOfCherries May 17, 2018

S.M.F.G.D 

shit. mutha .fucker .god .damn

I bent over the sink,
to take a drink,
and my cell mate, doin' 25 to life

said "you look just like my wife"
S.M.F.G.D

S.M.F.G.D by slampig 21 May 14, 2009

s.m.u.g. 

acronym for:
Suck Me Off Good

Susie can s.m.u.g. anytime!

s.m.u.g. by Jryzzle August 21, 2006