the GSG's Share definition Flag the Good Song Goosebumps. The tinglies you get throughout your body when a good song comes on or a good part in a song. "holy shit, you hear that breakdown? that gave me the GSG's" the GSG's by meaganamazing June 21, 2007 0 0 Get merch Get the the GSG's mug. Buy Now — $32.95 See more merch
