What is the definition of Antibiotic Resistant?

An 'antibiotic resistant' thing is when our trusty antibiotics, the superheroes of the microbial world, suddenly decide they're tired of saving us. They've seen enough antibiotic overuse and now they're just like our grandpa's old antibiotics - less effective, more... unsatisfactory.

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Here's an edgy example sentence: "I've tried every antibiotic, but the superbug just called in sick with a 'Resistant!' sign and now I'm left questioning if I should've just taken a nap with me."