«اِلْمَتْعُوسْ مَتْعُوسْ وِلَوْ عَلَّقُوا عَلَى رَاسُهْ فَانُوسْ»

The saying expresses a fatalistic view that some people are simply marked by bad fortune. No outside aid, illumination, or advantage placed upon them will change the outcome, because their ill luck clings to them wherever they go.

In practice it is a resigned or wry comment when repeated efforts to help someone keep failing. The speaker suggests that the trouble does not come from a lack of resources or guidance, but from a deeper, persistent misfortune; it is not advice about effort or perseverance.

Use it about someone whose run of misfortune keeps returning despite help, opportunity, or improved circumstances. It can be a rueful remark about oneself or a judgment about another person; aimed at others, it can sound hurtful, as if writing them off as hopeless.