Good S, a term/phrase coined by a Cape Cod band (doesn't wish to be named), is short for "Good Shit." Good S was developed when the band members realized that they couldn't say "shit" too much around their parents, so Good S was used instead. The "S" in "Good S" can also have other meanings, such as "Good Slut," "Good Stuff." For even more secret talk, the band also simply said "S's" for certain things, such as when the guys saw hot girls theyd simply say "S's!, meaning "sluts." The word V also came from this, meaning "vagina," and the boys would often be heard saying "Theres some V's and S's." During a trip to Virginia, the phrase "V's in V" was also invented, meaning "Vagina's in Virginia."
Boy 1: "Hey did you see that movie with your girlfriend?"
Boy 2: "Yeah man, it was Good S!"
Boy 1: "Hey, check out those girls!"
Boy 2: "Yeah those are some Good S's!"