you (can) bet your boots

you (can) bet your boots

You can be absolutely certain that something will happen. Sometimes used ironically. You bet your boots I'm going to that concert—I've been saving up for my ticket for months now! Oh, you can bet your boots that Kevin will be late tonight—he's never on time! I lost my umbrella, so you can bet your boots that it's going to rain soon.
See also: bet, boot
Farlex Dictionary of Idioms.

you can bet your boots (or bottom dollar or life)

you may be absolutely certain. informal
See also: bet, boot, can
Farlex Partner Idioms Dictionary

You bet your boots!

exclam. You can be absolutely certain! Am I happy? You bet your boots!
See also: bet
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • bippy
  • patootie
  • patoot
  • more like
  • more like (something)
  • none the worse (for something)
  • none the worse for
  • none the worse for something
  • seen worse
  • I've seen worse