MDS

Magic Dick Syndrome - a condition characterized by the belief that one's dick has magical properties capable of curing any perceived "ills" or "deficiences." Generally used in a disparaging manner.

Words that could have been spoken by George Costanza sometime after his fiance dumped him:
"Kramer has MDS. I turn them into lesbians, and he turns them back!"

"Jimmy can't even imagine I don't want to fuck him. I think he suffers from MDS."