Factual Bet - A fact so real it’s like a bet you can’t deny. Or a way to r

A fact so real it’s like a bet you can’t deny. Or a way to ruin someone’s day when they’re being a pain in the ass.

'He bet his last dollar on a factual bet. He lost.'

'She used a factual bet to show him he was full of crap.'

'I used a factual bet to make him eat a whole cake.'