1. in sexual senses the equation of women with food, reinforced in sense 1b by pvb ‘a slice off a cut loaf is never missed’.
(a) [mid-18C+] the vagina.
(b) [1960s+] a generic for women, in the context of sexual intercourse.
(c) [1980s] an attractive woman.
2. [1940s–70s] (Aus.) a £1 note; since decimalization, A$2 [? a single ‘slice’ of a wad of notes].
3. [1980s+] (US campus) a friend, an intimate [abbr. home slice under home n.].
[1950s+] (US) a ‘red-light’ area.
1. [late 18C; 20C+] to have sexual intercourse.
2. [2000s] to take a portion of the profits.
[late 18C+] of a man, to have sexual intercourse, esp. with a married woman, since proverbially ‘a slice off a cut loaf is never missed’.
see piece of cake under piece n.
[1960s+] (Irish) an act of sexual intercourse.
[20C+] the vagina.
[1960s] (Aus.) to commit adultery.