n. [ 1st hob + nail. ] 1. A short, sharp-pointed, large-headed nail, -- used in shoeing houses and for studding the soles of heavy shoes. [ 1913 Webster ]

2. A clownish person; a rustic. Milton. [ 1913 Webster ]

Hobnail liver (Med.), a disease in which the liver is shrunken, hard, and covered with projections like hobnails; one of the forms of cirrhosis of the liver. [ 1913 Webster ]

v. t. To tread down roughly, as with hobnailed shoes. [ 1913 Webster ]

Your rights and charters hobnailed into slush. Tennyson. [ 1913 Webster ]

a. See with hobnails, as a shoe. [ 1913 Webster ]