"Quim" is a word I am very curious about, though not an improper word I think. Similar to vagina or penis it is a word from the taboo subject of sex, a word for adults. If anyone can enlighten us, great, but if not i shall research it.

"Feck", the polite Irish swear word, which is used in virtually all the same contexts as "fuck" with the important exception of sex, is another for which I have no origin.
"Feck off", "he's a right fecker", "where's the feckin' bog roll gone" are all semi-accectable in polite company and nowhere near as bad as the "fuck" alternative.

And those are interesting comments about the power of polite words in cotrast to foul language. Churchill, when describing Hitler called him, "that evil man". He could have called him "that f&^%ing ba*!&¬!* sh&^(*&^& cock**&&", but the simple words he used carried even more impact that the worst four letter words imaginable.

A few of my favourites used in Ireland are;
Shithead
Shiteater (pronounced shitayetur)
Gobshite
Whoore's melt
Muck savage (not really bad but fairly insulting none the less)
Dipshit

The first and ladt are used outside of Ireland but are the others unique to our little isle?

Frank