none of your concern, nothing that you need to know
Definitions (粵典–words.hk)
語句
表示一件事同對方無關,叫佢唔好插手;呢個講法通常會比較短促 a phrase used to tell someone rudely that you do not want them to get involved because it is none of their concern
唔該你唔好干預我哋之間嘅糾紛,都唔關你事。
唔该你唔好干预我哋之间嘅纠纷,都唔关你事。
Please do not intervene in our dispute; It is none of your concern!
語句
表示一件事唔係由對方引起,而佢亦唔需要負上責任或自責;呢個講法會比較柔和 a phrase used to tell someone that it is not their fault and they do not need to take responsibilities
唔駛咁自責喎,成件事都唔關你事嘅。
唔驶咁自责㖞,成件事都唔关你事嘅。
You do not need to feel guilty because it is not your fault at all.