(Netscape) You may think you're keeping your potty mouth in check, but guess what? Your mother may not know you talk like that, but Google does. Using the so-called "seven dirty words you can never say on television" (well, once upon a time that was true) made famous by comedian George Carlin, Google Trends pinpointed the cities that swear the most -- at least online. The numbers were run by Business Insider, an online business magazine. The top 10 most obscene cities in the U.S. are:

  1. Ashburn, Virginia
  2. Tampa, Florida
  3. Herndon, Virginia
  4. Rochester, New York
  5. Irvine, California
  6. Newark, New Jersey
  7. Philadelphia, Pennsylvania
  8. Louisville, Kentucky
  9. Pittsburgh, Pennsylvania
  10. Los Angeles, California