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Used to describe the condition of male genitals created by prickly regrowth of shaved pubic hair. Does not occur if one has a manzilian as the regrowth is much softer
Diner: "Stop scratching your crotch at the table you disgusting creature!"
Waiter: "Im terribly sorry sir, but I haven't shaved my crotch and nutsack in four days and have developed a horry case of man cactus."
Diner: "Perhaps you should consider a manzilian".

Ho: Go and shave your junk, you ain't putting that nasty man cactus near my delicate ladybits.
by Steamtronic January 30, 2014
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