bet one's bottom dollar

== English == === Pronunciation === === Verb === bet one's bottom dollar (third-person singular simple present bets one's bottom dollar, present participle betting one's bottom dollar, simple past and past participle bet one's bottom dollar) (slang, idiomatic) To be absolutely sure of something; to be certain enough of something to wager everything. Synonyms: bet a dollar to a doughnut, bet one's boots, bet one's life, bet the farm, stake one's life ==== Translations ====