えい

here goes!, take that!, oh well

interjection Rare #35,146
here goes!, take that!, oh well An emphatic exclamation; the meaning depends on the situation.
JA: えい、やってみよう。
EN: All right, let's give it a try.

やっえい!

Yay!

— Cosmic Princess Kaguya! (2026)

えいえい…

Yeah, yeah...

— Departures (2008)

えい!

Take that!

— となりのトトロ (1988)

えい

Heave-ho!

— 七人の侍 (1954)

えい、仕方ない。

Oh well, it can't be helped.