SF is code for sexy Friday. So when I tell my girlfriend that we cannot have drinks Friday because it’s “SF”, the days we spend my husband and I spend an entire day of great sex with each other.
by Jmgantt15 July 31, 2025
Get the SFmug. 
An Xbox Live player who frequently plays RTS games, and is actually a member of a clan based off of an RTS game known as 'Command & Conquer' that originated shortly after the release of the fore mentioned game back in 1995. The clan he is a member of, worships the charismatic leader named 'Kane' of the evil forces known as 'NOD' and will usually be a very skilled player. Although many of the games this person has not played, this person, as most of their clan do, will usually pick the game up in a matter of moments, and be outplaying even the seasoned pros. Watch out for his tricks, he is known for being very misleading and WILL take advantage of a situation as soon as the opportunity arises.
Player: "Oh f, how did u know i was going to be there?"
SF napkin: "HA HA!! I was always watching, i am always watching."
Player: wtf man
SF napkin: "HA! you cant hide anywhere, so just come out and this will end quick....."
SF napkin: "HA HA!! I was always watching, i am always watching."
Player: wtf man
SF napkin: "HA! you cant hide anywhere, so just come out and this will end quick....."
by xboxliveperson August 14, 2010
Get the SF napkinmug. 
by BASICAL.LY March 18, 2019
Get the SFSmug. The School of Foreign Service, a prestigious international relations college at Georgetown University in Washington D.C., currently ranked #1 in the FP Ranking of IR Schools in the World.
Known as a producer of heads of states, congress members, foreign service officers, Wall Street financiers, etc., the SFS is often synonymous with elitism and privilege.
Known as a producer of heads of states, congress members, foreign service officers, Wall Street financiers, etc., the SFS is often synonymous with elitism and privilege.
Bob: Hey I heard that guy went to the SFS.
Frank: Oh another puppet for the billionaire? I mean another aspiring President. That guy must be the next Bill Clinton (SFS'68)!
Frank: Oh another puppet for the billionaire? I mean another aspiring President. That guy must be the next Bill Clinton (SFS'68)!
by aspiring hoya September 24, 2021
Get the SFSmug. 