(as) sure as hell
Certainly, definitely, or absolutely. I've worked all my life to get to this position, so I'm sure as hell not going to give it up without a fight! They're sure as hell going to notice all that money missing in the morning.
*sure as hell
Inf. very sure. (Use discretion with hell. *Also: as ~.) As sure as hell, III be there on time. As sure as hell he did it!
(as) sure as ˈhell
(American English, informal) certainly; without doubt: Joe sure as hell won’t want to dress up in a suit and tie.(as) sure as hell
mod. absolutely certain. I’m sure as hell he’s the one.
sure as hell
verb