In England, Wales and Northern Ireland, taking without owner's consent (TWOC), also referred to as unauthorised taking of a motor vehicle (UTMV), describes any unauthorised use of a car or other conveyance that does not constitute theft. A similar offence, known as taking and driving away, exists in Scotland.

In police slang usage, twoc became a verb, with twocking and twockers (also spelled twoccing and twoccers) used respectively to describe car theft and those who perpetrate it: these usages subsequently filtered