Green’s Dictionary of Slang

1. (N.Z.) a N.Z. $50 note.

1988		McGill Dict. of Kiwi Sl. 72/1: mango Kiwi $50 note; because note is orange, like the fruit; often used in card games like poker for high stakes.
2003		McGill Reed Dict. of N.Z. Sl. [as cit. 1988].

2. (US) in pl., the female breasts.

1987		‘Victoria Parker’ Pay for Play Cheerleaders 🌐 Nancy pulled out her titties and set them up like juicy mangos on top of her bra, her big round teen tits jutting proudly, her nipples erect.
1997		Roger’s Profanisaurus in Viz 87 Dec. n.p.: jelly water mangoes euph. Large knockers; gazungas.

3. (S.Afr. gay) a hairy anus.

2003

K. Cage Gayle.