It isn't over until the fat lady sings. -- Sports proverb
Well, the fat lady sang, and it's over. When Roseanne Barr screeched an off- key version of the national anthem, scratched her groin and spit at a ball game recently, she crossed the line between comedy and crudity. For an emerging group of female laugh getters, grossing out audiences is left to the likes of Andrew Dice Clay and Sam Kinison. Coven-like hairstyles are passe; so are Elizabeth Taylor fat jokes, delivered Uzi-style a la Joan Rivers, and the kind of masochistic self-deprecation that kept Phyllis Diller in face-lifts for...