A Fart Sniffer is another name for a Bathroom Exhaust Vent or Bathroom Exhaust Fan. You know, the fan in the ceiling of the bathroom that you turn on with the wall switch after stinking up the bathroom when you poop.
Dang Michael! You need to turn on the fart sniffer if you're going to blow up the bathroom when you poop!
by MichaelKnowsAll July 02, 2023