bluff definition
bluff (countable and uncountable, plural bluffs) 1  An act of bluffing; a false expression of the strength of one's position in order to intimidate; braggadocio. ( 2 poker) An attempt to represent oneself as holding a stronger hand than they actually do. ( 3 US, dated) The card game poker. 4  One who bluffs; a bluffer.