An expression of intense disagreement, dismissal, or incredulity. A: "I am the manager of this branch—what I say goes!" B: "The hell you say! If it weren't for me, this branch would have closed months ago!" A: "We just hired a guy called Tom McFadden. He's supposed to be one of the top financial advisors from Detroit." B: "The hell you say! I knew McFadden when we were kids. He's just a con man—he's never even been to Detroit!"