Being confused by 音 plz help

[Genius]

Hello! I discovered something confusing (to me at least) and thought perhaps any of you might have seen this before and could explain it…

The example sentence: めっちゃ方向音ちなんですよ
Translation: I’m super terrible with directions!

…what I don’t understand at all is what 音 ,meaning sound, has to do in there and how to read it…??? I even looked up the kanji in my dictionary but couldn’t find any explanations or example sentences where it’s being used in a similar way. I would greatly appreciate some help in clearing this up

[Belerith]

Screenshot hidden behind details section.

方向音痴

The ち belongs with the word, and this is what my dictionary gives me for the word, if that helps?

音痴

音痴 itself seems to have a meaning of ‘being hopeless at something’. How that culturally derived I’m afraid I can’t tell you.

[Leebo]

@Belerith

音痴 itself seems to have a meaning of ‘being hopeless at something’. How that culturally derived I’m afraid I can’t tell you.

Well, it means “tone deaf” originally. The “being bad at something” aspect of tone deafness got carried over to other things as well.

[Genius]

Ohhh okay I see, thank you so much for your reply!

[Genius]

oh so that’s how it is. I was so confused when the kanji for sound suddenly took on the mening of being terrible at something, but your reply definitely makes sense. Thanks!

[Belerith]

So it was as easy as that? Thanks.