▸nouna large cash prize in a game or lottery, especially one that accumulates until it is won.
– PHRASES
hit the jackpotinformal
1 win a jackpot.
2 have great or unexpected success, especially in making a lot of money quickly:
the theatre hit the jackpot with its first musical.
– ORIGIN late 19th century: from jack1 + pot1. The term was originally used in a form of poker, where the pool or pot accumulated until a player could open the bidding with two jacks or better.
EnglishOxford Dictionary of English
