Answer:
An open ended barrel, it is shaped like a hive. It is filled with the flesh, and the flesh is alive.
It can cause deflation of tires when dropped from the rear of spy cars.
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
What stays on the ground but never gets dirty?
Metal or bone I may be, many teeth I have and always bared. Yet my bite harms no one. And ladies delight in my touch.
How do you know if a sniper likes you?