It is a Parasitic Worm that, while you sleep, crawls up your shaft and slowly nibbles away at your prostate. Causing anal discomfort and extremely violent discharges, fluorescent in colour, and after a long time harbouring this parasite your testicles will distort and retract into your body. Then You Die
John : I woke up last night and my arse felt sore

Jack : Stay away from me, your home to The Deadly Shaft Worm now
by Shaft Inspector !!! February 6, 2011
Get the The Deadly Shaft Worm mug.