What is the definition of Accompanied Weapon?

An "accompanied weapon" is like a superhero sidekick, but instead of capes and cape-waving abilities, it's just a regular gun or knife with someone (or something) on board to make the action even more... dangerous. It's basically a buddy who's always there, ready to give the punchline of doom.

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Here's an unsettling example sentence: "The detective's newly acquired tranquilizer gun was accompanied by a vengeful raccoon who insisted on joining the crime spree."