Factful
A fancy word for 'yes' or 'it's true.' It's just a way to say something is real without actually thinking about it
"That's a fact!", said by someone who just saw it on a meme.
"That's a fact, I'm not even joking.", said by a person who was clearly joking.
"That's a fact, and I'm not even tired.", said by someone who was clearly exhausted.