The Vietnamese word "ngọt lừ" is an expression used to describe something that is very tasty or quite delicious. It is often used in the context of food, especially when talking about dishes that have a sweet, flavorful taste.
While "ngọt lừ" primarily refers to taste, "ngọt" can also describe sweetness in other contexts, such as a sweet sound or a sweet moment. However, "ngọt lừ" is specifically focused on food.