To toss about in bed; to roll from side to side because of restlessness or an inability to sleep. Often appears as part of the phrase 辗转反侧 zhǎn​zhuǎn​fǎn​cè.

(literary) To behave in an unstable or unpredictable manner; to be fickle or inconsistent.

(archaic) To go against the law or defy authority; to be rebellious.