bet one's boots v. phr.,
informal 1. To bet all you have.
This horse will win. I would bet my bottom dollar on it. Jim said he would bet his boots that he would pass the examination. 2. or bet one's life . To feel very sure; have no doubt.
Was I scared when I saw the bull running at me? You bet your life I was! [TahlilGaran] English Idioms Dictionary ▲