A Japanese-addict friend of mine recently told me that a possible translation
for "you're welcome" in Japanese was "mū", but I must admit I was a bit
dubious about that since I had never seen it nor heard it. I looked it up and
found no entries about it anywhere.

Is it a mistake?
CC BY-SA 3.0
2016-01-13T14:08:14.173
30388
2016-02-11T09:51:43.817
2016-02-11T09:51:43.817
11849
12201
question
translation words
Can the translation for "you're welcome" be "mū"?
Definitely a mistake. The only time I hear of むー is in comics where it's the
sound effect for thinking (I think you use hmmm in English). So, my theory is
this person heard a conversation like...

Akimori: I did your laundry for you.

Yamada: Hmmm...but I thought I asked Ken to do it.

And might have thought むー was "you're welcome" when it was just the person
thinking about something, haha.
CC BY-SA 3.0
2016-01-13T20:35:05.417
30391
2016-01-13T20:35:05.417
12000
30388
answer
It is possible if the individual/character answering is: male(most likely),
stoic, non-talkative, old-fashion (think samurai-stereotype of old) answering
a 'thank you' from someone. (Most novels I read with characters answering like
this would fit this description).

Might be more of a うむ～ but it could be むー depending on the writer or
character.
CC BY-SA 3.0
2016-01-14T02:10:34.210
30394
2016-01-14T05:39:34.800
2016-01-14T05:39:34.800
7810
12206
30388
answer