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2 definitions by Effshews

 
1.
S/f
A shorthand salutation used usually to end emails written by United States Marines. Stands for Semper Fidelis (Always Faithful) the USMC motto.
Jones,

Thanks for helpin us out back here. I'll make sure Gunny knows who came through for us.

S/f, Baker
by effshews March 17, 2014
 
2.
Hugs, Kisses, and Good Butt Sex

Not to be confused with GBS which is Gay Butt Sex. Each can, but does not necessarily include the other.
Used in the closing of a conversation.

Him: Hey. I left those tickets that you wanted on your nightstand.

Her: Thanks You're the best!
Him: I know. :-)
Her: xoxogbx... tonight!
Him: Woohoo!
by Effshews April 13, 2010