blind man's bluff

blind man's bluff
blind man’s bluff variant UK US
Main entry: blind man's buff

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ˌblind man's ˈbuff f12 (BrE) (NAmE ˌblind man's ˈbluff) noun uncountable
a children's game in which a player whose eyes are covered with a piece of cloth tries to catch and identify the other players
Word Origin:
[blind man's buff] early 17th cent.: from buff ‘a blow’, from Old French bufe ‘a blow’.

Useful english dictionary. 2012.