最近流行dirty哈,我也来个dirty的? lol, you know, there is no "haha" in english. i wondering if they understand what is "haha" from urban dictionary: http:///define.php?term=haha 1. haha short quick way of letting somebody know you are laughing, most likely at them. 3. haha a form of expressing laughter when oral expression is not available, like on the internet.查看更多