flop sweat

slang uncountable usually

(slang) Sweat due to nervousness, especially fear of failure. / (slang) Panic or anxiety about possible failure.

Japanese Meaning

失敗を恐れるあまりに出る汗。特に、失敗への不安やパニックの状態を表す俗語として用いられる。

He broke into a flop sweat as he watched the final seconds tick away and realized his mistake.

彼は最後の数秒が過ぎて自分のミスに気づくと、失敗を恐れて冷や汗をかいた。

Sense（1）

(slang) Sweat due to nervousness, especially fear of failure.

Billy Vine, covered with flop sweat, started so-so, but in a few minutes he had them.

Sense（2）

(slang) Panic or anxiety about possible failure.

flop sweats

（ plural ）