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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The short term for male-pregnancy. Usually seen in fanfiction and fanart work.

Best damn stuff I ever came across and very good to read when you are not in a good mood.

Common fandoms for mpreg include: Harry Potter, Naruto, Hetalia, Bleach, Glee, Super Natural and Kingdom of Hearts.
Girl1: "whats mpreg"
Girl2: delicious~
Boy1: Some sick twisted idea made up by a woman more than likely
Girl2: sick and twisted... no no no, its wonderful and addictive
Person: Its male pregnancy...
Girl2: squeee exactly, so very kawaii
Girl1 & Boy1: You scare me sometimes...
by Ramen7684 February 03, 2013

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