1 n female genitalia. Not to be used in overly-polite company. The word, I mean. 2 v thump; hit: I don’t remember anything after the boom swung around and I got twatted. 3 n idiot. Generally directed at blokes. A suitably confusing example would read “some twat in the pub accused me of having been near his bird’s twat, so I twatted him.” On the female genitalia front, so to speak, the poet Robert Browning once read a rather vulgar protestant polemic which referred to an “old nun’s twat,” and subsequently mentioned a nun’s “cowl and twat” in one of his poems, under the mistaken impression that it was a part of her clothing.