Hi, what does the expression “吃屎” mean in a non-literal, conversational sense?

For context, the sentence reads: “当她这些年在学校里吃的都是屎吗？”

Question

Hi, what does the expression “吃屎” mean in a non-literal, conversational sense?

For context, the sentence reads: “当她这些年在学校里吃的都是屎吗？”

Answer

我认为“吃屎”在这句话里的意思learn nothing，她在学校什么都没学到。有批评和讽刺的意思。

Answer

骂人的话，具体意思要结合语境。