off your trolley idiom UK informal
疯疯癫癫，失去理智;十分愚蠢
behaving in an extremely unusual way or doing something very silly
Anyone who saw us doing this would think we were off our trolleys. 任何人看到我们这样做都会以为我们疯了。
Have you gone completely off your trolley? You'll never get away with it! 你是不是完全疯了？你决不会逃脱掉的！