Japanese

occasionally i come across a word or phrase in Japanese, and I try to remember these so that one day I can

1. impress someone from Japan, or
2. impress someone who isn't from Japan but is easily impressed

but I have a bad memory so I'm going to type them in here. (disclaimer - I may have got these wrong, or someone may have told me incorrect information, or I may put something in wrong out of mischief. you never know do you?) Karoshi - death by overwork Kawaai - cute Dakara nani? - so what?