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A five-card poker hand containing four cards in the same suit.
(Card Games) a useless poker hand, containing four of a suit and one odd card
1. (Card Games) to bid confidently on a poor hand such as a four flush
2. US and Canadian a slang word for bluff1
a hand in poker having four cards of one suit and one of another; an imperfect flush.
1. to bluff.
2. to bluff in poker on the basis of a four flush.