look up any word, like dirty sanchez:
 
1.
An affliction suffered by males when they're in large bodies of water (ocean, river, swimming pool, bath tub, etc) for an extended amount of time. The 'disease' itself is reference to the shrinkage of the male's scrotum due to over-exposure to water. Similar to the 'pruning' that occurs to ones fingers and toes when submerged under water for extended periods of time, but for the scrotum.
Happy's first birthday party was a real blast, except for the widespread case of swimmers disease.

by Lincoln Hawk May 29, 2008