It's too instantaneous... Too many twits might make a twat".Iain has gone to note how the vulgarity of the word 'twat' isn't really there anymore. Not sure I agree with that, in my experience if you pop up North it is very much still vulgar - my mother used to slap me for saying it and she was from Cumberland.
Anyhow, on the subject of such vulgar words, I was reminded of this rather amusing line from Chaucer's The Wife of Bath,
"Is it for ye wolde have my queynte allone?"The way I see it, if Chaucer can use the word "cunt", albeit it in Middle English, then it can't be all that bad, can it?