with one's thumbs up one's ass

Adverb

not-comparable vulgar

(vulgar) Idly, doing nothing important in a situation that requires it.

Japanese Meaning

下品な表現で、重要な行動が求められる状況で、何もせずに無駄に時間を過ごす・だらだらと振る舞うことを意味します。

During the emergency, you can't afford to act with one's thumbs up one's ass; quick decisions are required.

緊急時に手をこまねいて行動していては許されない。迅速な判断が必要だ。

Sense（1）

(vulgar) Idly, doing nothing important in a situation that requires it.