What is the definition of Trained Weapon?

A 'trained weapon' is like a superhero's sidekick, except it's made of cardboard and not even has a brain. Imagine it as a trusty sidekick that's been conditioned to only use its superhero abilities when it's about to get kicked out of the team.

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Now, here's a chilling example sentence: "The therapist trained a trained weapon to deliver the perfect punch when the client finally hit rock bottom."