the.com/sure bet

The thing you call it right before it loses.

means Something regarded as certain to happen or succeed, with no real risk of failure.

from A straightforward pairing of 'sure' (from Latin securus, 'free from care') and 'bet,' the wager itself — origins murky, possibly tied to the obsolete 'abet' or simply shorthand gambling slang. Together they formed a phrase that promises certainty specifically in the one arena, gambling, built on uncertainty — which is likely why it's so often said moments before things fall apart.

origin
betting slang implying zero risk, which should worry you
reality check
true certainties rarely need the word bet attached
common users
con artists and overconfident uncles at dinner
market truth
guaranteed returns are the surest sign of a scam
the.com · every word