alanabit has it right!--there is 'good' and clever and funny raunch, and there is stupid, vulgar stuff that is done just for the excuse to shout obscene words. "Eskimo Nell" is raunchy, but it is 'about' something, and generally well constructed. Beware giving in to the requests for the lowest form, you are pegged for life....but if you learn a few really witty and funny songs of an 'earthier' sort, you attract a MUCH better class of audience.