You're pulling my leg.

나 놀리는 거지?

If you hear this idiom, it means the speaker has said something that is a joke and isn’t true.

The speaker is probably trying to tease you in a friendly way.  So, ‘I’m pulling your leg’ is similar to phrases like ‘I’m just joking’ or ‘I’m only kidding.’  Here are some examples using ‘pull your leg’:

• I’m only pulling your leg.  I don’t really have a pet snake in my garage.
• Don’t worry about what Mike said. He’s not really a policeman.  He was just pulling your leg.
• She’s pulling your leg.  She doesn’t really expect you to do all the cooking.