A festering Testicle. Usually attatched to a dead body, the festicle is symptomised by its green, and somewhat soggy appearance. The festicle may also occur on a living male. Usually after the insertion of testicles into another persons mouth. see teabag.
1.) As i went to pierce guy's scrotum, i realised he had a festicle.
2.) As Guy walked down the street he felt something roll down his leg, and realised his festicle had fallen onto the sidewalk.