joyriding

noun

1. 用偷来的车兜风（常指开快车或危险驾驶）；开偷车（罪）
   the crime of stealing a car and driving it for pleasure, usually in a fast and dangerous way

1. 用偷来的车开快车兜风；偷开车（罪）
   Joyriding is the crime of stealing a car and driving around in it at high speed.

1. The kids who are joyriding and ram-raiding are unemployed.
   那些开偷来的车狂飙和驾车抢劫的年轻人都是无业游民。
2. Dangerous joyriding is a necessary common crime, and this makes it different from severe speeding which is an administrative malfeasance.
   飚车型危险驾驶罪是必要的共同犯罪，由此方能与严重超速的行政违法行为相区别。