that's for dang sure
That is absolutely certain; that's the truth. "Dang" "Dang" is a milder substitute for "damn." We'll have our work cut out for us, that's for dang sure! A: "I'm sorry, boss. It won't happen again." B: "Well that's for dang sure, otherwise you're fired!"
That's for dang sure!
Rur. That is quite certain! (The formulaic response to That's for sure!. The accent is always on the dang.) Tom: That's for sure! Jane: That's for dang sure! Sally: We'll be there and that's for sure! Bill: Yup! That's for dang sure!