Dear all,<br/><br/>I read a sentence on a novel that I'm not sure of the exact meaning.<br/><br/>A girl(A) saw her boyfriend (B) talking to a beautiful woman.<br/><br/>A: Who was not? Do you know her?<br/><br/>"Hey, hey, hey." B said, with mock defiance. “She was just asking for direction."<br/><br/>What exactly does "mock defiance" mean?<br/><br/>Thanks a lot!