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A shanky penis or a penis that has been infected with a venereal disease and looks like a lumpy, infested, blistered, pimpled mess.
Jolly Johannason got the old potato finger when he grabbed his paycheck, spending it on a Vegas Venus, one week later a pain was growing in his groin and pimply crap started oozing from dozens of sores around his pecker.
by Venk January 12, 2006

Words related to potato finger

cheetos pecker penis potato famine venereal disease