When some one tells you a sarcastic remark or comment and you respond in a way that you think is funny/cheeky but does the opposite. It makes you seem weird/humourless/stupid/full of yourself/ a wanna-be etc
Sam: I am so much more talented then her!
Dan: and have you ever been on t.v?
Sam: I model and dance and omg I do soo much work its crazy I am like the next new thing! I am like the greatest people should just love me! bla bla blaa.
Dan: uhh, right.. Stop leafing off.. learn to take a joke.