n. a piece of leather-covered metal with a flexible handle; used for hitting people. [ slang ]
Syn. -- blackjack, sap. [ WordNet 1.5 ]

v. 1. . [ WordNet 1.5 ]

v. t. to hit (someone) with a cosh or similar bludgeon, usually on the head. [ slang ] [ WordNet 1.5 + PJC ]

v. t. [ Ir. cosair a feast, a banquet? or cf. F. coucher to lie. Cf. Couch, Coshering. ] 1. (Old Law) To levy certain exactions or tribute upon; to lodge and eat at the expense of. See Coshering. [ 1913 Webster ]

2. To treat with hospitality; to pet. [ Ireland ] [ 1913 Webster ]

n. One who coshers. [ 1913 Webster ]

n. (Old Law) A feudal prerogative of the lord of the soil entitling him to lodging and food at his tenant's house. Burrill. [ 1913 Webster ]

Sometimes he contrived, in deflance of the law, to live by coshering, that is to say, by quartering himself on the old tentants of his family, who, wretched as was their own condition, could not refuse a portion of their pittance to one whom they still regarded as their rightful lord. Macaulay. [ 1913 Webster ]