An early type of flintlock, usually of English manufacture, having an external safety in the form of a pivoted hook which engages a notch in the rear, underside, or breast of the cock.
Origin
Mid 18th century.
Definition of dog lock in US English:
dog lock
noun
Firearms historical
An early type of flintlock, usually of English manufacture, having an external safety in the form of a pivoted hook which engages a notch in the rear, underside, or breast of the cock.