@jonny Not to harsh your buzz but what you're describing sounds like how slang has functioned and travelled through culture for at least the last 100 years (in a Modern context, slang and in-group patois and slang obviously go back further). See also Lavender Languages, Black American slang, teenagers since we created the category of teenager, etc. Often these innovations in language reach the mainstream (aka dominant and dominating culture) through music, just as other aesthetic innovations usually first reach the mainstream via visual art, fashion and music.