damn straight
An emphatic affirmative response. It's your Broadway debut—damn straight I'll be there! A: "Are you excited?" B: "Damn straight!"
Damn straight!
exclam. You are absolutely right!; Yes!; Right on! Am I mad? Damn straight!
damn straight
Absolutely right. An impolite but frequently used phrase, John Lescroart had it in The Hunt Club (2009), “‘I should have told you. I’m sorry’—‘Damn straight you fucked up.’”