What is the definition of Brakes Weapon?

A 'brakes weapon' is like a superhero's sidekick, but instead of cape and cape-stomp, it's a pair of tires designed to slow down speeding vehicles. But here's a shot at being edgy: "In the dark alley, the brakes weapon screeched to life, transforming into a fearsome pair of tires that nearly made the thief waver in his tracks before he could zip away."