When you release all your over sexual thoughts and bed sexual tensions by masturbating and snapping back to reality.
" Man after Lisa sent me those nudes I couldn't stop thinking about sleeping with her , I need to rub one out and release this demon semen"
by Another random pervert April 13, 2017
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Went out on an all week binge with the ol demon semen.
by Kickassariel May 13, 2017
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A combination of a 44 oz. slushy from Speedway and a Monster or any energy drink. This mixture will not get you "high" but you will get a nice buzz from it. Invented on a summer day by two bored 16 year old dudes from Cleveland's west side.
Dude wanna make some demon semen and get our buzz on? Fuck yeah bro!!!
by ctowntom June 11, 2012
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A monstrous being that produces sperm, also known as the human male.
"I'm happy that I broke up with my ex boyfriend, I don't need that semen demon in my life"
by S Bullock October 28, 2019
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Semen demons tend to live inside teenagers rooms. Teenagers have the most semen and they tend to feed off of it. They also attack you mid masturbation they do that because they can smell your semen gaping inside of you.
Me: masturbating semen demon starts to suck my dick ferociously.
by Rhrudurhudjeh September 15, 2021
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