When you shove a potato in your vagina, or you wank your dick and ejaculate all over it.
"Wow! You gave Sally a sementator?!"
by Sementators April 25, 2017
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verb - the process of draining semen from ones vagina after intercourse without a condom.
After fucking my girlfriend, she had to go sement.
by Jacob Dempsey March 12, 2006
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A shot of liquor made by combining the semen of 2 or more human males, and a splash of vodka. The semen is harvested immediately prior to serving.
"Bobby and I got really bored with traditional shots, so we jerked each other off and made some sement mixers."
by jFET January 19, 2014
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The result of hot water coming into contact with post-coital fluid.
Dammit it Geoff, I'm going to need a knife to get this sement off the bathroom floor before my roommate comes home!
by F25ConsultingServices July 20, 2022
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the act of utilizing one's semen, to fill an external area on another's body
can also be used as plural ie. semented
destiny said she couldn't sleep due to the ruckus next door so I decided to sement her ear canal.
I semented her belly button to hide her outtie
by binnoladen March 30, 2023
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To sement -- to masturbate at, while thinking of, looking at, or otherwise picturing a certain person or thing.

Pronounced like "cement."
Examples:
"I semented Trisha last night."
"I saw some guy on the train earlier; he was just staring and sementing me."
by Al Gourd December 7, 2018
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The act of becoming filled with semen, even if no pregnancy occurs.
I've semented my wife several times. Now we just wait.
by AirosRhynef April 6, 2021
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