excessive production of male seminal fluid produced by the cowpers glands while being sexually excited without ejaculation. The male sexual equivalent of "salivate".
Watching this strip show is causing me to cowperate like crazy. I need relief.
by lukehappy June 10, 2011
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someone who is really ugly/annoying!
oh god they are such as cowper!
by Bossart January 4, 2008
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when yours best mate makes moves on your girlfriend behind your back
I just did a cowper

im a cowper

by Trevor "Wanker" Cowper April 5, 2009
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see pre-cum,precum
Named for William Cowper, the man on whom it was discovered that a few drops of liquid form at the tip of his dick when it is aroused, and twas thought it might be a little something to leave the kids in the form of a legacy.
One day in London, circa 1890, James Worthington, Thomas Haley, and William Cowper were just hanging out at the lab with their Starbucks Mochachinos, calculating the orbits of moons, looking through microscopes, and whatnot, when Haley jumped up and exclaimed, "Cowper, don't move! Stay exactly the way you are!"
Worthington had his eye on the microscope looking at some platelets, when he turned toward Cowper, who was stroking himself absentmindedly. This was nothing unusual in the course of things, but Haley rummaged through the flasks and vials, and found a long q-tip and a test tube, and stepped gingerly toward Cowper's member.
"What on earth are you doing, Haley?!" Worthington implored.
"Sshush, James! You'll scare it away."
Haley reached in, as if offering a perch to a hummingbird and gently dabbed the end of Cowper's manhood, giving the stick gentle half turns with each dip. "Alas, I have it."
Cowper was sitting as if in a stupor, and relaxed the hold on his dick. He was experimenting with a technique his colleague Jefferson Kegel had shown him, and so was a bit otherwise absorbed.
They placed the q-tip under the slide and each took a taste. "Hmmm, it's not quite jism, is it Worthy?"
"No, something different. Cowper's fluid is somehow unique."
"And so it is," Haley announced. "Henceforth this stuff from the end of Bill's nub will be called "Cowper's fluid."
There was much rejoicing and merriment, and the ladies brought in trays of whiskey and a violin was produced. A great celebration was had by all.
by Pantaloon January 9, 2008
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