hobnail noun 2verb 2forms 3 noun2 •A short nail with a thick head, typically used in boot soles. •(no longer used) A yokel; a rustic.There lay Tom; hobnail Tom! a bacon-munching, reckless, beer-swilling animal! and yet a man … — 1859 verb2 •To fit with hobnails.a machine for the hobnailing of shoes •(no longer used) To tread down roughly, as with hobnailed shoes.Your rights and charters hobnailed into slush. — 1875 formshobnailed · hobnailing · hobnails