Green’s Dictionary of Slang

money adj.

(orig. US)

1. used prenominally to denote success, proficiency, ability to win or to fulfil high expectations; e.g. money star, a famous film star; money jockey, a jockey who wins often; money card, the card that completes a winning hand in poker; money quote, a quote of a sensational exposure in a news story.

[US]R. Whitfield ‘Murder in the Ring’ in Black Mask Stories (2010) 346/2: You got a money fighter, Gus. All yours?
[US]Weseen Dict. Amer. Sl. 260: [Sports – Miscellaneous] Money play – A professional athlete.
[US]Berrey & Van den Bark Amer. Thes. Sl. 572: Popular actor [...] money star. [Ibid.] 673: Knockout blow [...] money punch.
[US]E. De Roo Go, Man, Go! 145: At the last meet he attended, he was only an onlooker; this time, the driver of a money car.
Csonka & Kiick Always on the Run 171: He’s a real money player, too. He’s been on three Super Bowl winners.
J.B. Holway Josh & Satch 10: Powell, a money pitcher, beat Salmon and Paige 10-5.

2. used without a n. with the same meaning, e.g. You’re money; That’s really money!

Online Sl. Dict. 🌐 money adj 1. hip, suave, cool. (‘You’re money’).
[US]Teen Lingo: The Source for Youth Ministry 🌐 money adj./adv. Right on the mark. To be excellent. ‘Yo . . . Billie . . . you are money.’ ‘Billy is our leading scorer on the team. He’s the money.’.
[US]W.D. Myers Game 23: [M]y game was money. All I needed was to show proper and we would come in either first or second in our division.
[US]C. Eble (ed.) UNC-CH Campus Sl. 2011 7: MONEY — wonderful, excellent, amazing: ‘The sunset last night was money.’.