Twat

The word twat is widely used as a derogatory epithet, especially in British English, referring to a person considered obnoxious or stupid. It is also used informally as a verb in British English to mean "to hit or punch a person". In British English and Commonwealth English, it is pronounced /twæt/ to rhyme with that, or sometimes /twɒt/, to rhyme with hot. In North American English, it is pronounced /twɑːt/, to rhyme with squat.Twat is also used in British English as vulgar slang for the vulva or female genitals in general.

Robert Browning famously misused the term in his 1841 poem "Pippa Passes", believing it was an item of nun's clothing:

Its meaning in reality the same then as now, Browning's misconception probably arose from a line in a 1660 satirical poem, Vanity of Vanities:

Another mistaken (or perhaps dialectal) use was in Edward Bulwer-Lytton's 1870 science fiction novel The Coming Race, in an apparent satire on Darwin:

...
Wikipedia