Term originated in jamaican reggae/dancehall scene.
During a soundclash, the opposing soundsystems will often refer to their competitor as a soundboys. Which basically means a sound which is young in scene, has no experience, lacks skills, or just plays bad music. The term is most often used just to show disrespect to the opposing sound.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)