Words, expressions, etc considered very informal, usually used mostly by in-groups, such as young people, and easily affected by trends and fashions.

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15
votes
2answers
652 views

Use of 厨 on the Internet

If you visit ニコニコ動画 or any Japanese message boards often you are bound to see comments like ニコ厨 or 東方厨. Does anyone have good idea how did this originate and what do they mean?
10
votes
6answers
2k views

Meaning and level of 死ねばいいのに

I have been hearing 死ねばいいのに twice last week, including once in a context where a bit of formality was required. What does it mean? Is it as violent as it sounds to me? I am not looking for a ...
19
votes
4answers
3k views

What is the meaning of all those “w”s in email and SNSs?

You see a lot of w and ww and even www in Twitter and casual chat. What does it mean? I've always thought it was わいわい but never found out. How is it pronounced? Here's an example from Twitter ...
15
votes
4answers
891 views

Where does なう on Twitter come from?

If you follow any Japanese speakers on Twitter, you'll almost certainly see them use なう at the end of a sentence, to say "I am in this place/doing this thing now". Where does this use come from? Who ...