madman man who behaves in a crazy manner ` Poor little thing , must have gone out through the cat door . Car got out of control . Some madman going too fast. ' ` If you 're going to marry a madman you might as well find out what makes him tick ' What a madman Frankenstein was to have created such a thing , and to hope to keep its existence a secret ! like a madman 'He drove like a complete madman to the hospital . ' I was working like a madman right up to the minute of the last show in London , then I collapsed in the studio . man who is mentally ill At the first performance Vivienne was terrified by Sweeney , seeing him as a homicidal madman . ` Did you like Burghgesh ? ' Athelstan asked quickly . He caught the gleam of recognition in the madman's eyes . He wants desperately to please me . But that's what madmen must be like . They aren't deliberately mad , they must be as shocked in a way as everyone else when they finally do something terrible .