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16.
SF
1. San Francisco, California
A city on the west coast of the US

2. Special Forces

SF is also an acronym used to describe the special forces of the military, whichever one that may be.

Some examples of Special Forces units are:

Navy SEALs (Sea, Air, Land), United States
Army Green Berets, United States
Army Delta Force, United States
SAS (Special Air Service), United Kingdom
Spetsnaz, Russia and Former U.S.S.R
Kampschwimmer, Germany
Commandos Marine, France
1. San Francisco is a beautiful city

2. Guy 1: Wow, that guy made it into the SF

Guy 2: Yeah, he must be good
by megachiken21 October 10, 2008
 
1.
SF
San Francisco
One of the most beautiful cities in the US and amazing for it has a soul.
I left my heart in SF...
by lois77 June 01, 2005
 
2.
SF
SF: Stupidty Factor
Acronym adjective for the description of the mental density of people (or distinct lack thereof), possibly in a covert manner to your co-workers/friends
1. There is a high high SF fault in this room.
2. The SF is so thick you can taste it.
by T. Walsh / Ronan XVII January 04, 2005
 
3.
sexually frustrated. in desperate need of nookie. WAY past the point of being horny.
"omgggggg, i haven't gotten any in TWO MONTHS i am SOOOO s.f."
by KELSCULLHAAAI January 21, 2009
 
4.
SF
"Sexually Frustrated"
When you havent had sex in a very long time!
Girl:OMG!!my boyfriend has been away for like 4 months and ive been so SF its not even funny -_-

Guy: Damn bro, i havent seen my girl in 3 days im fkn SF!!!
by creatorofsf September 01, 2011
 
5.
sf
shit,fuck, commonly used in a awkwardly situation,a code word,which is signalledo ut to another person who knows the meaning aswell.
Mom : sally(daughter) i saw your nude photos on the computer
daughter:Oh really mom? (looks at friend and says SF)
by Michael jackson58 October 03, 2009
 
6.
sf
being sexually frustrated but you're too embarassed to actually say sexually frustrated
wow! im so sf right now don't talk to me
by winbon August 07, 2012
 
7.
sf
Sausage Fest
Woah Woah Get that sf off the screen
Dude i know right sausage fests are so gross
by doodel November 13, 2011