Jooin baby, hugging one white man twice won't make you european don't worry

Ok, i'm dumb but I never got the Gay or European joke? Is it even a joke? Not trying to be rasict or anything. But pls, what is it I'm very slow.... :'))

Oh i was actually just talking about how jooin thought he was becoming European but search up gay or European on YouTube and you'll see what's up. It's a song from the legally blond musical :)