lead with one's chin

Verb

idiomatic

(boxing) To leave one's chin unprotected. / (idiomatic) To behave without caution; to make oneself vulnerable.

Japanese Meaning

（ボクシングで）あごを無防備にして戦うこと、対戦相手にとって攻撃しやすい状態にすること / （慣用表現として）不用意な行動を取って自分を危険にさらすこと

To lead with one's chin is a dangerous habit for any boxer.

あごをさらすことは、どんなボクサーにとっても危険な習慣だ。

Sense（1）

(boxing) To leave one's chin unprotected.

Sense（2）

(idiomatic) To behave without caution; to make oneself vulnerable.

leads with one's chin

（ present singular third-person ）

leading with one's chin

（ participle present ）

led with one's chin

（ participle past ）

led with one's chin

（ past ）