代駕

1. • to drive a vehicle for its owner (often as a paid service for sb who has consumed alcohol) (abbr. for 代理驾驶 dàilǐjiàshǐ)
2. • substitute driver (abbr. for 代驾司机 dàijiàsījī)

Character by character

• 代(dài)be a substitute for
• 駕(jià)drive