you bet your ass
Also, you bet or you can bet your bottom or bottom dollar or (sweet) life. You can be absolutely sure, as in You bet your ass I'll be there, or You can bet your sweet life that was Bill with another woman, or Are you coming?—You bet I am. All these phrases in effect mean that you can be so sure of something that you can wager your body or life or valuables on it; ass is considered vulgar, and bottom dollar means “last dollar.” [Colloquial; second half of 1800s]
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Ass-kicking, bad guy-killing Carter is just a future spinster.
So just looking forward to taking our sweet ass time with this next one.Deer Tick's John McCauley on Ten Years in Rock and Roll|James Joiner|January 2, 2015|DAILY BEAST
The revelation that, at age 42, Ben Affleck has one hell of an ass.Year of the Butt: How the Booty Changed the World in 2014|Kevin Fallon|December 30, 2014|DAILY BEAST
And when BET Weekend came to Atlanta two months ago, Brinsley thought he could become a major party promoter.
And given the current glut in fossil fuels, it might even be a better economic bet to wait a few years.
The ox knoweth his owner, and the ass his master's crib: but Israel hath not known me, and my people hath not understood.
And thy oxen, and the ass colts that till the ground, shall eat mingled provender as it was winnowed in the floor.
Spiker was willing to bet that right now Weston was over the way trying to prove to them that two and two was four.The Soldier of the Valley|Nelson Lloyd
Blessed are ye that sow upon all waters, sending thither the foot of the ox and the ass.
"I'll bet yo 'un a hoss I ken put a ball through that Yank's heart at fifty paces," he roared.The Courier of the Ozarks|Byron A. Dunn