A backdoor hand is made by catching needed cards on both turn and river.
Explanation. In postflop play, a backdoor draw refers to completing a flush or straight by hitting the right cards on both turn and river, starting from a flop that hasn’t given enough direct outs. For example, holding two hearts with only one heart on the flop, then catching hearts on turn and river. It’s less likely to complete than a regular draw, but can still win big pots if used opportunistically in intermediate strategy.