Interesting, Azizi, that this usage of 'rude' is unfamiliar to American ears. In Britain, 'rude' is probably the most common word for 'unmannerly, ill-mannered' &c. A parent will tell a child that it is very *rude* to push thru a door ahead of someone else, or to fail to offer a seat to a standing lady in a bus or an underground [subway] train, or to put out one's tongue at anyone — RUDE is definitely the word that would spring first to a mother's lips on any such occasion - as well as being quite commonly used to describe the sort of words to the songs we are talking of. And words like 'fuck', 'shit', and so on, are commonly called 'rude words'. And 'Eskimo Nell' is a rude poem & 'The Ball of Kirriemuir' is a rude song. &c &c &c...