1ADJ-GRADED [usually ADJ n]稀奇古怪的;不同寻常的;搞怪的 If you describe something as off-the-wall, you mean that it is unusual and rather strange but in an amusing or interesting way. 稀奇古怪的;不同寻常的;搞怪的 [informal]
...surreal off-the-wall humor.
荒诞不经的超现实幽默
2ADJ-GRADED (人、思想、行为方式)疯狂的,愚蠢的 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. (人、思想、行为方式)疯狂的,愚蠢的 [disapproval]
It can be done without following some absurd, off-the-wall investment strategy.