At one's beck and call.

eg:The boss has many workers at his beck and call around him.

中英俚语俗语来源：苏轼 王仲仪真赞序：“至于缓急之际，决大策，安大众，呼之即来，挥之即散者，唯世臣巨室为能。”

同义词：颐指气使 Get someone by the short hairs.

参考例句：It really get me when she start boss people around 她颐指气使地对人, 真叫我厌恶

呼之即来，挥之即去 At one's beck and call.

参考例句：He is famous for his good temper. He always shows up at one's beckon, and leaves when asked to. 他是出了名的好脾气, 一直呼之即来, 挥之即去