|a fool or simpleton; ninny.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|1.||any large prize, kitty, or accumulated stake that may be won in gambling, such as a pool in poker that accumulates until the betting is opened with a pair of jacks or higher|
|2.||hit the jackpot|
|a. to win a jackpot|
|b. informal to achieve great success, esp through luck|
|[C20: probably from |
see hit the jackpot.