A penis, irregardless of size, with highly volatile and extremely explosive ejaculatory properties. The current mortality rates for women whom allow said eruption to occur inside of the vaginal canal is 49%. There is a 73% chance of tissue damage and a 100% chance of internal bruising at the very least. Mortality rates for those attempting to take the burst orally jumps to 92%. It is not advised to ever let the eruption occur internally as there are 1.4 million projectiles speeding away from the penis at an average speed of 590 feet per second, though the current record is mach 1. Anyone with a penis that may be classified as a boomstick is required to have it registered for it's lethal abilities.
I took one shot from that boomstick and was gagging for a month!