Crime doesn´t pay : if you do something illegal, you will probably be caught and punished Police arrests are being given maximum publicity as a reminder that crime doesn't pay. Hell to pay : serious problems There will be hell to pay when you get back home. Pay someone a backhanded compliment : Fig. to give someone a false compliment that is really an insult or criticism. I hate it when someone pays me a backhanded compliment—unless it's a joke. Pay an arm and a leg (for something) : Fig. to pay too much [money] for something. I hate to have to pay an arm and a leg for a tank of gas. If you shop around, you won't have to pay an arm and a leg. Why should you pay through the nose? Pay someone back : Fig. to get even with someone [for doing something]. I will pay her back for what she said...