1 definition by Wigan

The dramatic change of personality some people undergo after consuming ecxtasy or other narcotics. They have no recollection of taking on there embarrasing alter-E-go or anything they do when they've changed.
Friend 1: "no way is that Anton rolling around on the dancefloor naked?".
Friend 2: "no man that's Bernard his alter-E-go!".
by Wigan February 21, 2008
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