know which way is up

Verb

alt-of alternative

Alternative form of know which end is up

Japanese Meaning

物事の本質や状況を正しく把握している / 常識があり、適切な判断や対応ができる / 周囲の変化や状況に敏感で、自分の立ち位置を理解している

After three days without sleep, I didn't even know which way is up.

3日間眠れず、どちらが上なのかさえ分からなかった。

Sense（1）

Alternative form of know which end is up

knows which way is up

（ present singular third-person ）

knowing which way is up

（ participle present ）

knew which way is up

（ past ）

known which way is up

（ participle past ）