blow smoke up someone's ass

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The expression refers to the once popular medical practice, now fallen into disuse and almost forgotten, of the tobacco smoke enema, in which tobacco smoke was literally blown up a person’s rectum.[1] Employed for a large variety of ailments, its credibility was already questioned early on and eventually effectively discredited.


blow smoke up someone's ass (third-person singular simple present blows smoke up someone's ass, present participle blowing smoke up someone's ass, simple past blew smoke up someone's ass, past participle blown smoke up someone's ass)

  1. (Canada, US, slang, vulgar) Alternative form of blow smoke

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