What is the definition of Fitness Fumes?

"Fitness fumes" is like the stale air you breathe after a marathon of weightlifting, but way more pungent. Imagine this: "After sweating profusely in the locker room, I caught a whiff of fitness fumes that would make a gym rat blush - and probably faint."

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Here's an unsettling example sentence: "The new fitness coach's workout regimen has left her breathing out fitness fumes that could make a skunk reconsider its life choice."