also blind-man, "blind person," early 14c., from blind (adj.) + man (n.). Children's game of blindman's buff attested from 1580s; the blindfolded person tries to catch the others, "who, on their part, push him about and make sport with him" [OED]; from buff "a buffet, blow" (see buffet (n.2)). Alternative form blindman's bluff is by 1880s. Such a game formerly was called hoodman-blind (1560s).