nut roulette

When you feel pleasure when masturbating, you'll hold your breath and won't breathe until you cum. This may cause a heart attack and that’s why it's called nut roulette (after Russian roulette).

Jake: "Mike died doing nut roulette."
Tom: "Oh no what were his last words."
Jake: "He wanted to have ’I died doing what I loved’ on his gravestone.
Tom: "F"