What do you call the strip of grass between the street and the sidewalk? Depending on where you live, you may call it a tree lawn, a berm, a city strip, the parking, or one of a host of other regional terms for it. In a small part of the country, this narrow piece of land called a devil strip. In fact, this expression figures in a great story about forensic linguistics: When a linguist analyzed a ransom note and saw the term devil strip, he realized this was a telltale clue– one that would lead authorities right to the kidnapper. This is part of a complete episode.