闇夜 やみよ鉄砲 てっぽう
yamiyoni teppō

Noun

1. aimless attempt; shot in the dark

Rare
闇夜 あんや鉄砲 てっぽうじゃあるまいし、そんな場当 ばあたり てきなやり かたでうまくいくとは おもえないよ。
an'yani teppōjārumaishi sonna bātaritekina yarikatade umakuikutowa omoenaiyo.
That's just a shot in the dark. How do you think you'll succeed by just acting on the spur of the moment like that?