旧指戏剧界未出徒便背着师傅出外演出。现指为获取经济收入，不经本单位组织批准而私自受聘于他人私自演出to perform without one's master's knowledge; to moonlight

• 文艺界“走穴”问题引起争论。

  The issue of performers moonlighting in the arts world has triggered debate.

• 有些人从艺后只忙于拍戏、走穴。

  Some people after going into the arts find they are only busy with shooting dramas and moonlighting.