Top Definition
Mutant with one giant ball. The Testemorph often takes his sexual partner by force, male or felmale makes no difference to the Testemorph. The courting usually begins with a ball rubbing ceremony ending with full blown penetration of the anus, vagina, mouth or males anus. The Testemorph is capable of shooting an unheard of amount a semen. Sometimes measured in litres the ejaculate contains no sperm as the Testemorph is sterile.
After my tenth beer a drunkin testemorph jumped out of the bathroom and shouted "I'LL FUCK ANYTHING THAT MOVES!!".
by Young Blood Chapman September 20, 2007
1 more definition
Mutant creep with one giant ball. Has the ability to shoot massive quanities of semen. Known to take a sexual partner by force. One important note is that the Testemorph with rub his ball on both men and women.
I opened the stall door and I saw the testemorph cover Larry Craig with a massive amount of lumpy semen. Craig looked at me and said "I'm not gay, I never have been gay!"
by Young Blood Chapman September 14, 2007

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