まんこ

Etymology 1
. First attested in the Edo period in the Kantō region, and until relatively recently use was confined to this area. Most likely theories of origin suggest:
 * a contraction of
 * an alteration of
 * a shortening of
 * an alteration of the
 * a derivation from the, from a reading of menkō rather than the expected on'yomi of monkō

Noun

 * 1)  female genitals: a cunt, a pussy
 * 2)  a woman
 * 1)  a woman
 * 1)  a woman

Usage notes

 * Only used as slang. Never in medical situations.
 * Considered harsher than.

Synonyms




Etymology 2
Appears to be specific to the spoken at the northern end of.

Full derivation. The final is almost certainly the nominalizing suffix, but the preceding  is uncertain.

Noun

 * 1)  a ruby