Don't joke around with me... -_-
Ever had a friend that kept trying to pull your leg or tell you something outrageous that couldn't possibly be true? This would be one of many replies. It can be said lightheartedly or seriously depending on the situation and how you use it.
Below are the Korean texts. Please feel free to utilize Google Translate to hear how they're pronounced :)
뻥 치지 마
“야! 뻥 치지 마…” -_- (ya! bbeong chi-ji ma)