try it on idiom UK informal
向…行骗;对…粗鲁无礼;耍弄
to deceive someone or behave badly, especially in order to discover how much of your bad behaviour will be allowed
He's not really ill - he's just trying it on. 他并不是真的病了——他只是在耍花招。
The kids often try it on with a new babysitter. 孩子们常常耍弄新来的保姆。