The phrase you mentioned is from the song "Bad Boys" by Inner Circle. The song is famous for its chorus lines: "Bad boys, bad boys,
What'cha gonna do,
What'cha gonna do,
When they come for you?" This song gained prominence as the theme song for the TV show "COPS" and has become widely recognized in popular culture. Additionally, "Bad Boys" is also the title of a popular American buddy cop action comedy film series starring Will Smith and Martin Lawrence. The latest installment, "Bad Boys: Ride or Die," was released in 2024, continuing the story of Miami detectives Mike Lowrey and Marcus Burnett.

So, your phrase is widely associated with this song's chorus and the "Bad Boys" movie franchise. Let me know if you'd like more information on either!