drop fact

In the course of a non-expert discussion of a topic, to suddenly and inappropriately refer to scientific, statistical or historical information about the topic, often of a questionable or half-true nature. Contrast drop science.

A: Dick Cheney is freakin' evil.
B: You'd think so, but--watch me drop fact here--he's actually the country's third-biggest donor to cancer research, if I'm not mistaken.

Bames Fact

A Bames fact is when someone answers a question, or makes a statement with what they assume to be correct in a factual manner, when in fact it is completely false.

A Bames fact is commonly followed up with aggressive insistence, even when shown blatant disproof of the Bames fact.
Rarely upon disproof, a Bames fact can be followed up with wild theories as to how the receiver of the Bames fact is somehow at fault.
IE: "Dude I recorded the conversation, listen to it!" - "That must have came through your speakers wrong"

"Did you know that pizza originated in Asia?"
"idk man that sounds like a Bames fact"

"I heard somewhere that ----------"
"are you sure that isn't a Bames fact?

in fact

1. (law) Resulting from the actions of parties.
2. (modal) Actually, in truth

People think tomatoes are vegetables, but, in fact, they are fruits.