Top definition
Penis in Mouth Disease(PMD) is often caught by homosexuals and other promiscuous beings. It happens by being exposed to the male reproductive organ too often. After many years of exposure, there is no stopping the need for penis in ones mouth. This is the point of no return. If caught early, it can be treated.
Example 1: Ayy bro, you know that Sarah chick? Yeah, just found out last night she's got the Penis in Mouth Disease. My cocks gonna be limp for days now.

Example 2: So I was at the bar and some dude asked me if I wanted a BJ. I'm like, I'm not into that kind of stuff. It didn't stop him. I later found out he's had Penis in Mouth Disease for 13 years now.
by roflcopters2 July 04, 2009
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