A more fun way to say cock and balls. Put the emphasis on the A in cack and the U and Z in bullz. The best thing about this is you can say it under your breath in lieu of cock and balls and people don't usually understand what you really mean.
Example 1: Darren is giving her his CACK AND BULLZ!
Example 2: Tripp "Joe did you study for our math test today?"
Joe "No man, I am going to take the cack and bullz!"