1.when one lets out a fart in a hot shower causing a horrible stench that the steam intensifies, making it a sauna of farts
2. something to tell people to make them smile while taking pictures
L. Man, I let out a horrible fart in the shower the other day. I almost threw up.
S. Oh man Fart Saunas are the worst!
by PilotMSK January 2, 2011
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