Pronunciation: (chop'ur),[key] —n. 1. a person or thing that chops.
2. a short ax with a large blade, used for cutting up meat, fish, etc.; butcher's cleaver.
3. a prehistoric implement made by striking flakes off one or both sides of a stone, considered the oldest known worked stone tool.
4. choppers,Slang.the teeth.
5. Informal.a helicopter.
6. Slang.a motorcycle.
7. a device for interrupting an electric current or a beam of light at regular intervals.
—v.i. Informal. a. to travel by helicopter: We choppered into midtown from the airport. b. to travel by motorcycle.