by asdfgh1234567 April 21, 2014
Get the semenade mug.After you cum, the uncleaned semen group together to form a chunky piece of shit -the Semen Monster. The leftover semen can come from a variety of places: laptops, bathrooms, tissue paper, vaginas, even your belly button. As the Semen Monsters multiply, they scheme to take over all vaginas, and pollute our offspring with semen DNA. Nasty stuff!
Timothy: Hey, just finished jacking it.
Lancelot: Ooh, better clean your junk, the coagulated semen might group together and burst out of your cock and turn into a Semen Monster.
Timothy: Just like in Alien?
Lancelot: Just like in Alien.
Lancelot: Ooh, better clean your junk, the coagulated semen might group together and burst out of your cock and turn into a Semen Monster.
Timothy: Just like in Alien?
Lancelot: Just like in Alien.
by thighmaster69 November 10, 2018
Get the Semen Monster mug.Related Words
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Get the SemperZombie mug.latin word meaning "always faithful" also the moto of USMC (the greatest fighting force ever constructed)
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Get the semper fidelis mug.by coocooo June 10, 2008
Get the semen stains mug.The tendency for hw, projects, tests, etc. to occur with disproportionate frequency in the final weeks of a semester.
You thought high school was tough, wait 'til you experience the end-of-semester snowball phenomenon in college.
by 4eggSAMple April 15, 2009
Get the end-of-semester snowball phenomenon mug.