factoid
A made-up fact that sounds real enough to trick a fool. It's like a lie wearing a suit and pretending to be a fact.
"Did you know aliens invented pizza?", said by a guy who eats pizza at 3 AM.
"This fact is 100% true, I swear on my mom's grave.", said by someone who lied to their mom.
"I read this in a brochure.", said by a guy who reads brochures instead of books.