A crowbar, pry bar, or prybar, more informally a jimmy, jimmy bar[citation neeed], jemmy (British Isles) or gooseneck is a tool consisting of a metal bar with a single curved end and flattened points, often with a small fissure on one or both ends for removing nails. In the British Isles, "crowbar" may be used loosely for this tool, but is more commonly used to mean a larger straight tool (see spud bar). The term "jemmy" or "jimmy" most often refers to the tool when used for burglary.