I can tell you this much, if you don't know what this is, you will never guess it. The best part is the name of this gadget. Details after the break.
This gadget is called the Remington Butt Out and it is used to disconnect the anal canal from big game like deer. Yuck and totally random. Saw this in Oregon at a sporting goods store and couldn't believe it, And yep, you guessed it, I am not a hunter.