如果你扭某人的胳膊 twist someone's arm 就意味着你说服他们做点什么。

例句

I know you said you didn't want to go out tonight, but can I twist your arm? I could really do with a night out.

I shouldn't have one of those cakes as I'm on a diet… But go on then, you've twisted my arm!

请注意

To pull somebody's leg 拉某人的腿意思是捉弄某人，开某人的玩笑。

I haven't really won the lottery - I was only pulling your leg.

You want me to run the marathon with you? Are you pulling my leg?