The Vietnamese word "khè" refers to something that is dirty or discolored, often specifically used to describe a yellowish or stained appearance. In this context, it is commonly associated with teeth, as in "răng vàng khè," which means "dirty yellow teeth."
"Khè" can also be used metaphorically to describe something that is not just physically dirty but can also imply a lack of cleanliness in a broader sense, such as a poor standard of hygiene or care.
While "khè" primarily refers to the idea of being dirty or yellow, it can also be used informally to describe someone who is not taking care of themselves or their appearance.
In summary, "khè" is a descriptive word in Vietnamese that denotes a dirty or yellowish appearance, particularly in contexts like teeth.