Spam for spam, a common phrase on instagram and other social blogging websites, basically a user requesting you to like a large number of their pictures in return for them liking a large number of yours.
Acronym for Standard Fantasy Setting. You got your elves, dwarves, goblins, swords, and magic. If you can't talk about it without referencing the Lord of the Rings or Dungeons & Dragons, it's probably in the SFS.
"I'm making a game about dwarves, but it's not in the SFS cause they're like actual dwarves who work as tax accountants."