Idiom meaning, usage examples, facts

1. Paula’s never late. If she said she would be here at 9:00, you can bet your boots she will be.
2. I’ll bet my boots that the salesman will try to get us to buy a more expensive car. They always do.

Synonym: bet (one’s) bottom dollar. Whereas bet one’s bottom dollar can be used in both the affirmative and negative, bet one’s boots is used only in the affirmative.