Mancannon
If you were looking for something else, perhaps a Jump Pad, please see that article
The Mancannon is a device found on the male gender of the Homosapien mammal species. It is a multi-purpose device located on the front of the male at the groin.
The primary purpose of the Mancannon is for reproduction. For this to be achieved, a consensual female allows the Mancannon to be positioned into her receiving bay, and the male fires several rounds from the Mancannon, with the aim of hitting the center target, where happy times is achieved.
Confusion over the Mancannon
The Mancannon is sometimes confused with something else that was also invented by Bungie, and that is the Jump Pad. Although they were both invented by the same creator and are extremely similar in appearance, they perform two very different functions.
Mancannon Substitution
Artificial Mancannons are available to those who lack an existing Mancannon, or just wish to have a bigger one.