grand slam
noun uk/ˌɡrænd ˈslæm/ us/ˌɡrænd ˈslæm/
(WINNING EVERYTHING)
[ C usually singular ]（体育比赛中赢得各项重要比赛的）大满贯，全胜
an occasion when someone wins all of a set of important sports competitions
(CARDS)
[ C usually singular ]（牌戏，尤指桥牌中的）大满贯
an occasion when someone wins all the cards in a card game, especially bridge
(BASEBALL)
[ C ]（棒球中满垒时的）四分本垒打
in baseball, the hitting of a home run with runners at all three bases, so that four points are scored