Drakmeire said:
I hate to sound gross but there have been many cases in which someone will have a heart attack when they orgasm.
We've covered death by your own ejaculate, I think that just about anything's fair game here xD
The death to end all deaths:
Imagine if you will, you've just woken up to find your room filled with a sea of fluffy kittens, numbering in the hundreds at the very least. You don't have time to question why a miracle like this could happen, as your first instinct is to dive headfirst into them and coddle like you've never cuddled before. It feels amazing, the warmth and fluff overpowers you as you roll in them like a pile of leaves.
Suddenly, your breath is stifled, you can't seem to take in anything. You've delved too deep into the kitten sea, and they're overwhelming you, drowning you in their cuteness. You swim desperately to the surface and gasp for air, only to get a mouthful of fur and nametags. Your vision becomes blurry, and you can see a light at the end of the tunnel. You wade through the kittens towards it, hoping to find some peace that life never brought you.
Oddly enough, you hear the sound of a horn, and with a start you see that that light is in fact a train, barreling at you and your feline companions at speeds unimaginable, hitting you and killing you instantly.