What is the definition of Permits Fumes?

"Permits fumes" is a peculiar phrase that essentially means allowing smoke or exhaust from something to escape freely. It's like saying, "I'm giving the green light for my car's exhaust to spill out into the open without any thought to the next person down the street's nose."

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Here's an unsettling example sentence using this phrase: "The factory's new smokestack permits fumes that have been so potent, it's starting to look like a vape shop gone rogue."