Generally a tool that is used for turning screws. Often used to make a lever or even leverage. Some use it to scratch a back. Tip.
In the right hands powerful like Thor's hammer. Tip.
Serious and scarry. Has mighty jaws, has appreciable weight. With WD-40 makes dreams come true. Tip.
Your last chance to preserve your honor, your dignity. But what can withstand these sharp teeth. Tip.
Hmmm... Better wipe your tears, wipe your nose. You know what to do... Tip.