Truthiness

Truthiness is a logical fallacy in which a person believes something to be true simply because they believe it to be true. With truthiness, a person does not consider facts, evidence, or reasoning, and instead "know" something is true just because.

This term was coined by comedian Stephen Colbert on his show "Colbert Report" in 2005, and was the Word of the Year in Merriam-Webster's Dictionary in 2006.

Truthiness is an internalized form of Appeal to Emotion.