When a man's semen ends up on his stomach, either by his own handywork or with the help of another; inspired by the species' method of reproductive development wherein the male carries the embryos on his stomach region.
I didn't have any tissues near by so i just seahorsed myself and passed out.

She doesn't like to swallow, so she usually just gives me the ol' seahorse.
by scrote-dogg June 02, 2007
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A man who stays at home to take care of the kids. A stay at home dad or house husband with children.
My husband is totally a seahorse, the kids love him.
by Skeren Dreamera January 24, 2016
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When you tickle a person behind the knee with your foot: Used to induce an orgasim. Not a 100% guaranteed.
"Hey, today in business class. I gave my friend a seahorse."

"Really?"

"Yeah, but he didn't come"

"Shame..."
by SSeahorse January 13, 2012
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A Penis and a vagina at the same time
*Nick you are a seahorse
*Because we don't want to be a seahorse
by Sunflower sunhat December 01, 2016
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A lesser entity than a bitch or biat. A comparison to the only species in which the male carries the eggs during gestation.
Look at dat seahorse carryin dat hoes bags.
Kiss my ass you fuckin seahorse.
Punk ass seahorse takin shit from that bitch.
by Chris December 01, 2004
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adjective: a being who possess a need for constant sex, much like the animal.
Man Anthony is so horny. He's such a seahorse
by Maximo the great May 24, 2010
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A 46 year old man sticking ice cubes up a horses nose for fun
Person 1: Hey Person 2 what do you like to do for fun
Person 2: I’m a seahorse
by Eggineer December 27, 2019
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