What Is British Slang?

I love british romances. Y, like romance, like romcoms. Thers, ther banter, so fun, because british banters are something different,. So, an example of a lot of british slang that came up as i reread one day in december. I had the audio book, which i love, a british author, yes, jose silver, so the i had theaudio book, and i love the audio book. It's so well done and narrated. And in the printed version there are, like, the central britISH slang got changed to american thingsso if someone says, like,  the