The Vietnamese word "nứt mắt" is an idiomatic expression that literally translates to "just opened eyes." It is commonly used to refer to someone who is very young, often implying that they are still in their early childhood or infancy. The phrase conveys the idea that the person is not yet mature enough to understand certain things or make certain decisions.
In a more figurative sense, "nứt mắt" can also be used to describe someone who is inexperienced or naïve in a particular situation, even if they are not necessarily a child.
While "nứt mắt" primarily refers to youth, it can also imply a lack of understanding or maturity in other contexts.