The overindulgence of too many vindaloos (or other spicy food), too much cheap beer, or by incerting obects covered in tabasco sauce into the anus(see Mexican Starfish) causing extreme discomfort whilst taking a poo.
Too much spicey food could cause furnace anus
by ticktokk March 13, 2014
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Gina's puppy furnace is so stinky it could kill a small village.
by ms nasty August 21, 2009
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When your making love to your girlfriend and her body is so hot you can feel it through you.
Mark: how was your evening? Bill: Man sally was so over heated last night shes like a Fuck Furnace
by THENORTHERNPUNK February 19, 2014
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The testicles, vas deferens or any part of the male genitalia that produces semen.
Would you like some hot jizzum from my man furnace?
by nion0 December 15, 2007
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A sexually transmitted disease, similar to herpes, caused by the extreme heat of metal crafting. Can only be treated by coming into contact with Vagina Ocean or Fire Extinguisher Ass.

synonyms: flaming cock, fire penis, steamballs, gonna-sypha-herpilitis, wiener inferno.
antonyms: vagina ocean, waterfall cunt, ice twat, turkey
Guy 1: Dude, today my dick furnace flared up so bad, my dick started shooting fire and now I have a hole in my pants.

Guy 2: Well, I heard there are some girls at BH with Vagina Ocean. Maybe you should go fuck one of them. Be sure to get some doggy style on the side of the road while you're at it.
by Wompy W. Womperson April 9, 2011
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A word to describe anyone who is very, very angry with their gf for no reason what-so-ever. This person also gets angry with people in his chemistry class when his soda is stolen, even though the soda shouldn't have been there in the first place.
No!, your a blast furnace!
by Jeezus March 25, 2004
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To take from another man's furnace, proclaiming your sexuality.

In Minecraft, when a man takes from another man's furnace, it is an act of flirtation. This, in turn, angers the gods.
Carson: *takes iron*
Carson: "OH NO!"
Jschlatt: "What?!"
Carson: "No wonder God's mad. I took from the furnace."
Jschlatt: "AAAAAAAAAAAAAAAAAAAAAAAA"
by ZubbyG January 25, 2020
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