In Poker, a stake put up by a player before seeing his cards (see quots.); cf. blind, adj. 1h. Also attributive in blind-money. Also figurative.

Poker. A doubling of the ‘blind’ or stake by one of the players.

(in plural) a game of poker in which only the money a player has on the table at the start of a hand may be used to bet in that hand; (also…

Cards. An increase of a stake or bet at poker; (Bridge) a higher bid in the same suit as a previous bid by one's partner. Also figurative.