all bets are off

American  

[awl bets ahr awf, of] / ˈɔl ˈbɛts ˌɑr ˈɔf, ˈɒf /

idiom

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.

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Etymology

Origin of all bets are off

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

Example Sentences

Should a new criminal charge be made after the current investigation, all bets are off.

From Los Angeles Times • Mar. 21, 2026

But the wildfires ablaze in Los Angeles right now, whose total destruction remains to be seen, show all bets are off when it comes to what defines wildfire season.

From Salon • Jan. 15, 2025

Should those fur babies be canine, however, all bets are off.

From Science Magazine • Oct. 25, 2023

If the Mariners go into a severe nosedive in the near future, of course, all bets are off and the narrative changes.

From Seattle Times • Jun. 27, 2023

But make fun of my brother, and all bets are off.

From "Marcus Vega Doesn't Speak Spanish" by Pablo Cartaya