I'm not going to post them here but if you have a sick sense of humor then you may want to waste some time here:
http://coedmagazine.com/2009/07/27/punch-lines-to-the-100-most-offensive-jokes-of-all-time/
http://coedmagazine.com/2009/07/27/punch-lines-to-the-100-most-offensive-jokes-of-all-time/