The Vietnamese word "đánh hôi" is a colloquial expression that means to "make something smell bad" or "to emit a bad odor." It is often used in informal contexts, typically when referring to food or other substances that can produce an unpleasant smell.
In more advanced contexts, "đánh hôi" can also refer to situations where something that is not usually smelly becomes unpleasant due to certain conditions, such as poor storage or spoilage.
While "đánh hôi" primarily refers to smell, it can also be used metaphorically to describe situations or actions that are unpleasant or undesirable.
"Đánh hôi" is a useful expression for describing bad smells, particularly in food. It is informal and best used in casual conversations.