by B_ond October 31, 2004
Group slut fic. Refers to a type of erotic fanfiction in which any and all members of a particular (usually all male) ensemble cast have crazy sex with each other. Probably originated in popslash fandom.
OMG, I just read the hottest GSF. All the members of *nsync were having hot mansex to the sweet strains of "This I Promise You!"
by iguessnot July 03, 2006
The Grove Street Families of Grand Theft Auto: San Andreas. Sweet, CJ's brother, is the leader of GSF, although CJ is the brains behind the organization.
by Bob February 21, 2005
by Joel November 17, 2004
by easileigh April 25, 2003
Jim: "Can you get that report done?"
Bob: "Man, with it being so close to the holidays, my GSF is low. Can it wait till Monday?"
Bob: "Man, with it being so close to the holidays, my GSF is low. Can it wait till Monday?"
by onesmartcookie38 December 27, 2011