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
Brianna	bree-AN-ə, bree-AHN-ə	English
Luann	loo-AN	English
Innocent	IN-ə-sənt (English)	History
Chestirad	-	Medieval Slavic (Hypothetical)
Nance	[næns]
Waller	['wɔlə]