S.I.S. 

Self-inflicted stupidity. An injury that you caused to yourself by an act of stupidity.

Friend 1: How did you get that cut?

Friend 2: I was running with scissors down the stairs and my shoes were untied.

Freidn 1: Thats some serious S.I.S.

S.I.S. by Ahseetz Mahpants January 10, 2009

S. A. F. 

Sorry As Fuck. Pathetic, worthless, laughable.

You've been here for 3 months and haven't even TRIED to get a job? Rent is due. That's S. A. F.

S. A. F. by mmmew March 5, 2010

S.A.M. 

Sexually attractive males

Hello S.A.M.

S.A.M. by Harlovrobus May 27, 2018

S.T.P.

Steaming Trump Pile, an especially fresh, enormous pile of mammalian feces from a large dog, bull, cow, or a random jogger.

Dodge the S.T.P. on your run today. It's getting deep out there.

S.T.P. by seudokode October 10, 2021

S.E.A.L. 

1.a man in the navy
2. a donkey with a gun
3. a millitary fag with a big ass gun

1. haha look at that seal haha
2. o Shit!!! its a S.E.A.L.!! run!!!!!!!
3.OMG its a SEAL

S.E.A.L. by seal January 30, 2003

S.O.D 

it stands for shouting out disease and means when you shout out whatever you see!

"i have S.O.D.Shouting Out Disease."

S.O.D by JenRo n Boof August 21, 2003

S.O. 

Something other

I want to get a gift for her SO than the usual.

S.O. by poppi December 10, 2003