Calvins

A historical slang term from the American West for a prostitute, with 'calico' — a type of brightly printed cotton cloth associated with women's dress — serving as a euphemistic stand-in. The term is now entirely obsolete and belongs to the vocabulary of the Old West, frontier saloons, and 19th-century American vernacular. Mainly encountered in historical fiction, westerns, and academic studies of frontier language and culture.

A light, euphemistic slang term for the female genitalia, often used humorously or to soften an otherwise blunt reference. It carries a playful, slightly coy tone, making it a popular choice in casual conversation, comedy, and contexts where clinical terms feel too formal and explicit language feels too harsh. Common in British and Australian speech particularly, where this kind of understated humour is a staple.

A casual slang shortening of 'condom' — the kind of informal word used when you want to be matter-of-fact about contraception without using the clinical term or making it awkward. It's breezy and practical, the sort of word that comes up in a pharmacy conversation or a frank talk between friends. Not especially widespread, but perfectly functional and widely understood in context.

A delightfully blunt Northern English and Scottish term for underpants. 'Kecks' (or 'keks') is already regional slang for trousers, so 'underkecks' naturally refers to what's worn underneath — your underwear, your smalls, your unmentionables. The word has a no-nonsense Northern quality to it, the kind of thing you'd hear a parent shouting up the stairs. It's functional, slightly funny, and instantly recognisable to anyone from the North of England.