What is the definition of Liverpool Weapon?

A 'Liverpool weapon' is like a superhero's secret weapon, but instead of a cape and gadgets, it's the city of Liverpool itself, boasting a rich history, world-class football, and, dare I say, a legendary boot-strap attitude that makes you feel like you're about to take on the entire world (and one bad day).

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Example sentence: "When the rain starts pouring like a Liverpool storm, you just know it's time to deploy your Liverpool weapon – your sarcastic wit and an unshakeable sense of humor to turn the tables."