lolz          
noun [ plural ]  informal uk/lɒlz/ us/lɑːlz/
 哈哈哈(在社交媒体或手机短信中谈及好笑的事情或开玩笑时使用)
used as an exclamation, for example on social media and in text messages, when you think something is funny or you intend it as a joke
  I was just kidding. Lolz. 我在开玩笑呢。哈哈哈。 
 Synonym: lol
  玩笑;好笑的事
the fact of something being a joke or funny
  We did it just for lolz. 我们这么做不过是为了好玩。