Collins COBUILD Advanced Learner's English Dictionary - off-the-wall

1. If you describe something as off-the-wall, you mean that it is unusual and rather strange but in an amusing or interesting way. (INFORMAL) ...surreal off-the-wall humor. ADJ: usu ADJ n 2. If you say that a person, their ideas, or their ways of doing something are off-the-wall, you are critical of them because you think they are mad or very foolish. It can be done without following some absurd, off-the-wall investment strategy. ADJ c darkgreen]disapproval