This is truer than you might think. A lot of slang developed out of a need to express oneself without having the vernacular (or even desire) to clearly articulate. It leads to innovating interesting (and in some cases more practical) new ways to say something in a way others (typically in your in-group) can understand easily.

I suspect a lot of that crazy Gen Z stuff comes from kids getting into social media well before fully developing their own social skills, so it just started manifesting through terms and phases they picked up from video games and such.