Mark in Scranton, Pennsylvania, calls about a phrase he heard on an old detective show: drop a dime. It means “to inform on someone” or “tip off the police,” and comes from the practice of literally dropping a dime into a payphone to make a 10-cent...
To dime someone out, just like to drop a dime (on someone), is to nark or tattle, common in the days when it cost ten cents to use a pay phone and snitch. Of course, that’s when pay phones were used at all. This is part of a complete episode...
