Furnace + Ass. When the release of flatulence is incredibly hot, feeling as though it is roughly 10-20 degrees celsius hotter than the body temperature of the person releasing it. Typically, Furnass releases are completely silent and smell worse than anything the natural world can produce.
"Sorry, James, I have ridiculous Furnass right now."
"I know, Tyler. I've been smelling it for the last hour."
"I know, Tyler. I've been smelling it for the last hour."
by He Who Has Smelled Furnass February 23, 2021
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