Claim: The phrase "blow smoke up your ass" comes from a pre-modern medical practice in which tobacco smoke is literally blown up a patient's ass.
Fact-check: Does 'Blow Smoke Up Your Ass' Phrase Come From 'Tobacco Enemas'?
Verdict: mostly false
Organisation: Snopes
Author: Alex Kasprak
Date published: 2021-02-18T16:47:53