MADMAN

male (plural -men), female madwoman (plural -women) [noun] [C] - (disapproving) someone who behaves in a very strange and uncontrolled way, or (dated) someone who is mentally ill(disapproving) He's a madman - I told him it wasn't safe to climb up that cliff.(disapproving) He ran like a madman through the streets, shouting her name.(disapproving) He drives like a madman (= too fast).