Green’s Dictionary of Slang

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

1942

R.L. Bellem ‘Malibu Mess’ Dan Turner – Hollywood Detective Dec. 🌐 Her voluptuous bonbons surged under the bodice of her frock.

2. (US gay) an erogenous zone on the male body.

1972		B. Rodgers Queens’ Vernacular 35: bonbons 1. erogenous areas of the male body which normally appear in dual number: nipples, testes, buttocks.
1989–2003		R.O. Scott Gay Sl. Dict. 🌐.

3. (US gay) anal virginity.

1972

B. Rodgers Queens’ Vernacular 21: bonbon anal virginity ‘I’ve been in the life for thirty years ... and in all those years, I’ve still kept my bonbon.’.

4. (US gay) in pl., common sense.

1972

B. Rodgers Queens’ Vernacular 35: bonbons [...] one’s common sense ‘She lost her bonbons over that piece, hon!’.

5. (Aus.) the buttocks.

2010

L. Redhead Thrill City [ebook] Chloe, despite her advanced state of gestation, was shaking her bon-bon in a hot pink bikini.