STSF 

STSF(Semper Tacitus Semper Fidelis)-A group of elite individuals who follow, and are bound by, the code STSF.
STSF-Semper Tacitus Semper Fidelis.
Semper-Forever/Always
Tacitus-Silence/That which must not be spoken of
Fidelis-Faithful
Code explanation:

Semper Tacitus-That which happens between us, stays between us and is not discussed with or in the presence of outsiders.

Semper Fidelis-Always look out for each other. Always back each other up.
STSF!!!

We are STSF!! STSF forever!!!

STSF by DarkSkull June 17, 2010

STSF 

shit thats so funny

STSF. he is the best

STSF by kickbuttsurrey October 26, 2010

STSF 

Spread That Shit Fucker

person 1: you're a whore

person 2: STSF no one cares about you anyways

person 3: :0

STSF by winkywink November 27, 2010

STSF 

shade thrown, shots fired. When you verbally attack someone or something someone did.

"Let's go for a three hour lunch. Oh wait, we are not interns."
"Damnnnn.... stsf."

STSF by literaryfreedom September 14, 2016