A slut with an insatiable voracity for warm semen.
I spied a semen demon skulking around the dimly lit frat house furtively grabbing at cock.
by bloomy121147 December 25, 2009
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A dirty girl that craves semen so much she would summon the devil for it.
Yo I hung out with Shirley last night and she drained my balls like a semen demon
by Dildo stuffer June 26, 2020
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Semen Demon (Noun)

One who takes in great amounts of sperm.

Has lots of sex.
Also known as a whore, slut, slore, and hoe.
Yo! Where my semen demon dawg?
That bitch is a semen DEMON!
by Taylor J Keeran May 20, 2011
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A pejorative for children, especially children that aren't well behaved.
Those little semen demons are disturbing everyone
by TheKnightWhoSaidIckyIcky August 3, 2021
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A "Semen Demon" is a female who seeks for mens semen in order to have kids or just for the fun of it.
M y ex-girlfriend broke into my house, drugged me and when I was passed out she jerked me off and when I nutted she kept my semen in a jar I guess you can say she's a real "semen demon".
by Jr the jackass October 29, 2022
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A individual, human or otherwise that is capable of excreting immense quantities of semen. Commonly displayed in various acts of a sexual nature in pornography, specifically but not limited to the Japanese Hentai
John: Hey Matt, you see that dude in A Slave's Revenge?
Matt: Oh yea mate, he's a real Semen Demon.
by RaisonDetrah February 14, 2015
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