Sally is really worried because something happened to her check.

BANK MANAGER: Ms. Benson, I'm calling to inform you that the bank bounced your check.

SALLY: What? I can't believe it! My check bounced again?

If your check bounced, it means that it was not accepted by the bank because there was no money in your account. 

Sally went shopping spree last month and probably forgot to deposit the money in her bank account. We all hope she doesn't forget to do that next time.