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 January 21, 2009

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SF

"Self freedom". Freeing yourself, sexually. i.e. Masturbation

Dude, I like totally SF-ed 5 times yesterday...I'm dry.

by Ashley March 27, 2005

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SF

Sour Face......a facial frowm in response to an awkward moment.

1) Oh, that bitch was SF.

2) After your friends notice your foul mood, you might here them say..." stop being so sf "

by Biasotti December 28, 2005

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sF

The creator of 75.43% of all EFNet IRC traffic (*see: Eris Free Network, IRC). His sad devotion to telling epic stories in as many lines as possible sometimes annoys those around him, however his sexy man-charms, gaping wide anal pore, and care-free attitude make him an endearing companion.

1 Example of praise -> "sF is teh r0x0r".
2 Example of homoeroticism -> -%- (_sF) sF bends over, lubes up, looks through his legs, and winks at pX

by mysterious stranger July 16, 2003

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