A man who fathers several childern with several different baby mamas and takes care of none of his offspring. The master of "hit it and quit it." His powerful sperm leaves a trail of destruction, unpaid child support, and fatherless children in its wake. Beware the sperminator... woe to unfertilized eggs in his path!
My ex is a total sperminator! he has 5 kids by 3 different women!
by amylou5276 June 23, 2010
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A man who impregnates a woman other than his wife and proceeds to hide this fact for years.
by A1988 May 19, 2011
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One who is an utter nuisance, spontaneously combusts at the mention of anything he/she disagrees with, ruins the lives of others and truly believes that he/she is superior to all mankind. Sperminators are awful people if by chance you encounter one run away chanting loudly "you're an awful singer".
Ex. 1
Guy 1-The Sperminator is a serious asshole!
Guy 2-Yeah dude

Ex. 2
Girl 1-THE SPERMINATOR HUGGED ME :(

Guy 1-Burn your clothes and take a bath in bleach
by made in the usa January 8, 2012
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ie; Sperminated, Sperminating, Spermination. The official title of a lesbians known sperm donor.
My Sperminator came over earlier, cross your fingers for me!
by MissTotos August 25, 2017
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refers to someone pregnant.
"Why isn't Carla drinking?"
"She can't, dude, she's sperminated."
by dj1234 February 5, 2008
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a famously massive penis found on several beaches in Southern California; created by several beautiful men
Damn! I just saw a spermin in San Clemente! It almost made me cum!
by Johnnyremmell October 6, 2018
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Rob: Check out that ass! I would totally sperminate her any day of the week!
Matt: HAHAHAHAHA, your chances with her are slim to none.
by Mister D October 20, 2004
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