When you splooge on a girl on any part of her body and she doesnt wash it off in time. It hardens like cement and she cries because her mom sees.
I put sement on trisha's face, and she was very upset when it didn't come off in time for school the next day.
by twitch___ March 10, 2005
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Spanish/Mexican slang used by mature Latina mamas worldwide to affectionately refer to their well-endowed younger lovers. Literally meaning stud.

Also used for uncastrated male horses charged with breeding the mares
"To forget about mi hijo Juan's debts, his well-endowed weed dealer Victor, offered to own me sexually for a week. We have our second anniversary today and waiting for our first niña pequeña. Amo a mi semental.~"
by BWCVictor June 2, 2021
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to cum on a girls clothes, then the next day the girl realizes it is all white crunchy and flakey like cement.
Hey is that sement from that guy you blew at the party last night. cum skeet ejaculate head blowjob masturbate pussy vagina penis cock sex fuck tits tigolbities jew booty milk sauce
by jews r' us April 14, 2010
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The process of an object becoming stiff due to ejaculatory fluids.
After cumming into a sock he kept under his bed, Johnny found it became hard and stiff thanks to sementation.
by SyrupPants November 14, 2014
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The process of an object becoming stiff due to ejaculatory fluids.
After cumming into a sock he kept under his bed, Johnny found it became hard and stiff thanks to sementation.
by SyrupPants November 14, 2014
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When you cum in cement, it becomes sement (SEE-MENT
"Bro I lost my cumsock in a vat of wet cement"
"Bro that's sement now"
by I AM JESUS CHRIST MARK 2 February 10, 2019
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Antics that lead to the release of semen. This usually involves the genius and mind control of a Deviant Gentleman in his ability to use antics that cause a pretty young lady to help him in the release of his semen.
The Deviant Gentleman used sementics and found that it was a great release from the pressure of the day.

He used the Ejaculate Consumption Theory in his sementics and she did indeed end up giving him a blow job.
by Bret Michaels December 20, 2007
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