sf 

Stop Flirting. Used jokingly in group chats.

"nice shirt bryce"
"sf honestly"

sf by monsieurkeek May 24, 2016

sf 

so fucking

oml i'm sf done with this

sf by CleverDuck January 31, 2017

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...

SF by lois77 June 7, 2005

sf 

sf stands for straight facts.

1: dude Westbrook is the goat
2: sf

sf by xxxblue February 21, 2017

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.

SF by T. Walsh / Ronan XVII January 4, 2005

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!!!

SF by creatorofsf September 3, 2011

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)

sf by Michael jackson58 October 3, 2009