all bets are off

[ awl-bets-ahr awf, of ]

  1. (used when the outcome of a situation is too uncertain to predict): We have to make it to the meeting place by 5:30 or all bets are off.The individual ingredients may be safe, but once you mix them up into a brew, all bets are off.

Origin of all bets are off

First recorded in 1830–40, in reference to horse races

Words Nearby all bets are off Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023