use one's head

Verb

idiomatic humorous

(idiomatic) To think carefully, especially as an alternative to being guided by one's emotions. / (humorous) To headbutt.

Japanese Meaning

冷静に、あるいは十分に考える（感情に流されず合理的に判断する） / 冗談で、頭突きをする

When making emergency decisions, it's important to use one's head and prioritize safety over panic.

緊急時に判断を下すときは、感情に流されず冷静に考え、安全を優先することが重要だ。

Sense（1）

(idiomatic) To think carefully, especially as an alternative to being guided by one's emotions.

He never—so they agreed—uses his head. He never—I think I have their phrase correct—stops to think.

Sense（2）

(humorous) To headbutt.

uses one's head

（ present singular third-person ）

using one's head

（ participle present ）

used one's head

（ participle past ）

used one's head

（ past ）