哈哈 = nice, but (sometimes) not really funny
呵呵 = interesting=go fxxk yourself / piss off
and some variant words…
哈哈哈哈 = real funny / can't help to laugh
蛤蛤 = from a wise and powerful elder, always means another sentence "Too young too simple, sometimes naive"
嘿嘿 = 哈哈 + pretend to be friendly
吼吼 = 哈哈 + try to be friendly
hiahia = "哈哈" in a tricky way
作者：匿名用户
链接：http://www.zhihu.com/question/25422146/answer/30813192
来源：知乎
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