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An act of severe stupidity. Can be applied to a lot of things such as spoiling a game or anime for himself even though he hates spoilers. Term was coined when Jman the originator of the term fucked himself by spoiling a anime for himself and a friend leaving a good friend in awe of his stupidity. The act of jman'd or jmaning was then created.
He just jman'd that entire show for everyone in the channel.
Lief almost just jman'd that game but he got his shit together.
Jman just jman'd allover his J's
by UnknownDoge February 08, 2014
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