What is the definition of Patches Weapon?

"A 'patches weapon' is like trying to fix a broken toy car with duct tape and duct tape alone - it might look a little better, but it's not going to fly."

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Now, here's an unsettling example sentence: "As the sun set over the battlefield, our paratroopers decided to patch their trusty M16s with spare duct tape and old band-aids, convinced that it would somehow make them unstoppable in the face of doom."