Top definition
A slidea (pronounced SL-idea) is an idea that a person just slides into, without really thinking about it.

It involves one or more of the many fallacies inherent in illogical thought.

Political and religious propaganda are the two most common methods of distribution for slideas.
Joe: I heard that after the new liberal administration is reworking taxes so that the richest people pay more and the poorest people get bigger breaks.

John: I read that after that, they are going to restructure society where we are all assigned jobs at random and have to stand in line for bread.

Jack: What gave you that slidea?

Mark: He got it from that angry conservative blog he's always reading!
by dnalabkram March 05, 2009
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