you can bet your bottom dollar (on something)(redirected from bet your bottom dollar on)
you can bet your bottom dollar (on something)
You can be certain that something will happen (so much so that one would hypothetically risk one's last dollar betting on it). I lost my umbrella, so you can bet your bottom dollar on it raining tomorrow! Oh, you can bet your bottom dollar that Kevin will be late tonight—he's never on time!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
bet one's bottom dollar, one can
One may be very certain of something. Bottom here means last, or the bottom of a pile of gambling chips. An American colloquialism of the mid-nineteenth century, the phrase became a cliché in the mid-twentieth century.
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer