to bet bottom dollar
01
to be absolutely sure that something is true
![to [bet] bottom dollar definition and meaning](https://cdn.langeek.co/photo/46670/original/?type=jpeg "to [bet] bottom dollar definition and meaning")
Idiom
Informal
أمثلة
She's so dedicated to her studies that I would bet my bottom dollar she'll graduate with honors.
to be absolutely sure that something is true
IdiomInformal
