lead with one's chin

Take a risk, behave without caution. For example, Gordon always says exactly what he thinks; he never minds leading with his chin. This term alludes to a boxer leaving his chin, a vulnerable point, unprotected. [Mid-1900s]

Common Names:

Name	Pronounced	Usage
Norbert	NAWR-bert (German, Polish), NAWR-bərt (English, Dutch)	German, English, Dutch, French, Hungarian, Polish, Ancient Germanic
Shantelle	shahn-TEL, shan-TEL	English (Rare)
Cathair	KA-heer	Irish
DÁNjal	-	Faroese
Vavrinec	-	Slovak
Na'im	-	Arabic