Contraction of the words "wilful ignorance" or "willing ignorance". A term for people who choose to believe that popular opinion and beliefs outweigh facts and the weight of evidence to the contrary.

Useful description for people who support a political candidate to their own detriment because they subscribe to a slogan.
Due to wiligno displayed by voters, they elected a politician who took away their benefits because they did not understand who they were voting for.
by ThaThatOtherGuy March 18, 2017
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