1 definition by demonthief13

Shortned term for Male Pregnancy. M Preg is often found in fanfiction. It can also be called mpreg.
1. The Arnold Schwartzernegger film "Junior" is a prime example of M Preg.

2. Frank: WTF? How the hell am I pregnant? I'm a DUDE! Gerard: Whoops, guess we forgot the condom again.
by demonthief13 January 23, 2008
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