blackjack

Definition
(noun) a common scrubby deciduous tree of central and southeastern United States having dark bark and broad three-lobed (club-shaped) leaves; tends to form dense thickets Definition
(noun) a piece of metal covered by leather with a flexible handle; used for hitting people Definition
(noun) a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship Definition
(noun) a gambling game using cards; the object is to hold cards having a higher count than those dealt to the banker up to but not exceeding 21 Definition
(verb) exert pressure on someone through threats