Okay kiddo, bling-bling is when someone wears a lot of shiny and bright jewelry or other accessories that make them look very fancy and rich. It's kinda like when you play dress up and put on all of your favorite sparkly clothes and jewelry to look like a princess. But bling-bling is usually expensive and is often worn by famous people, rappers or other celebrities who want to show off their money and success. So bling-bling is really just a shiny and sparkly way to show off how cool and wealthy someone is!