SFS Gang Share definition Flag A group of people that simp for a girl named Serena. It stands for Simp For Serena Simp1:hi Serena. Serena:hi.simp1 can I do your homework for you?.Serena:umm ok.chad: lol kid you’re part of the sfs gang huh? SFS Gang by Stranger 193 May 12, 2021 0 0 Get merch Get the SFS Gang mug. Buy Now — $32.95 See more merch