cowardly lion

Noun

figuratively

(figuratively) A person who acts tough but misses a golden opportunity out of fear or cowardice.

Japanese Meaning

見た目は強がっているが、実際は臆病で、チャンスを生かせない人を皮肉った表現

At the meeting he acted all tough, but when it was time to sign the contract he proved to be a cowardly lion and let a golden opportunity slip away.

会議では強がって見せたが、契約に署名する段になったら結局は見せかけだけの臆病者で、絶好の機会を逃してしまった。

Sense（1）

(figuratively) A person who acts tough but misses a golden opportunity out of fear or cowardice.

cowardly lions

（ plural ）