Meaning of the word "you can bet your bottom dollar" in English

What does "you can bet your bottom dollar" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

you can bet your bottom dollar

US /ju kæn bɛt jʊər ˈbɑtəm ˈdɑlər/
UK /ju kæn bɛt jɔː ˈbɒtəm ˈdɒlə/
"you can bet your bottom dollar" picture

Idiom

to be absolutely certain about something; to be sure that something will happen

Example:
You can bet your bottom dollar that he'll be late.
If she says she'll do it, you can bet your bottom dollar it'll get done.