疯子的英文的缩写为lunatic或madman。双语例句:1.这个疯子开着一辆白色货车直接冲到了我前面!This lunatic in a white van pulled out right in front of me!2.那个男子是个语无伦次的疯子。The man's a raving lunatic.3.这起凶***案是一个疯子所为。The killing was the act of a madman.