Go out like a rock star, load up on drugs, booze, and hookers. Get high as a kite, bring your blood alchohol level up to like 6.0 and screw till there's no fluids left in your body and you wang is just spitting out air.
If the OD, alchohol poisioning, or dehydration doesn't do it... Sleep on your back and let your own vomit do the job. You know Led Zep, AC/DC style.