Top Definition
An acute condition that causes a sudden need to correct others and convince them of your moral superiority. Most commonly occurs in people who are convinced that their moral standards are absolute.
A person who sees themselves as a moral police officer... a moral apostle.
Someone makes a joke about something considered politically correct in the western world. A person affected by apostlitis will become enraged and launch into a tirade about how "wrong" this joke is.
by Secular Prophet November 13, 2010

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