Green’s Dictionary of Slang

negative! excl.

[orig. in radio messages]

no! no to...!

[US]P. Conroy Great Santini (1977) 251: ‘Do you want breakfast?’ ‘Negative, sportsfans.’.
[US]J. Ellroy Brown’s Requiem 177: Negative to all that rebop.
[UK]J. Cameron Vinnie Got Blown Away 150: ‘You shitting me man?’ ‘Negative.’.
[US]S. King Dreamcatcher 607: You thought you were getting used to it and then realized that no negative, you were not.