1 definition by rynne

Top Definition
MPD
Multiple Personality Disorder. The act of one user having multiple screennames; esp. for the purpose of being a troll.

Also used to indicate one of said screennames.
"That ass BlackJack is MPDing as Jizz Hitler."
"Yeah, I figured Jizz Hitler had to be an MPD."
by rynne June 30, 2004

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