A squeeze when a defender, rather than declarer, leads the card that inflicts the squeeze.
South plays in 3NT after East opened the bidding. West leads the ♠4 to the ♠A and ducks the spade return. Even after the ♣J falls, declarer can see only eight tricks, so he cashes a third club, crosses to the ♥A, cashes the ♣10 and leads a spade. West can do no better than run the spades, the last one of which ‘suicidally’ squeezes East.