you can bet your bottom dollar

US /ju kæn bɛt jʊər ˈbɑtəm ˈdɑlər/
UK /ju kæn bɛt jʊər ˈbɑtəm ˈdɑlər/
"you can bet your bottom dollar" picture
1.

bertaruh seratus persen, sangat yakin

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

:
You can bet your bottom dollar that he'll be late.
Anda bisa bertaruh seratus persen bahwa dia akan terlambat.
If she says she'll do it, you can bet your bottom dollar it'll get done.
Jika dia bilang akan melakukannya, Anda bisa bertaruh seratus persen itu akan selesai.