Factual Bet - A fact so strong it’s like a bet you can’t argue with. Or a

A fact so strong it’s like a bet you can’t argue with. Or a way to make someone look like a complete idiot.

'I used the number of pizzas I ate as a factual bet. He lost.'

'She said it was a factual bet. He said it wasn’t. He was wrong.'

'He tried to cheat the factual bet. He got caught.'