Definition: "Sweet nothings" is a phrase used to describe soft, affectionate words or phrases that someone says to another person, often in a romantic context. These words may not have much real importance or meaning, but they are meant to express love, affection, or tenderness.
In summary, "sweet nothings" are loving words shared between people, often in a romantic relationship. They may not be significant in a literal sense but serve to strengthen emotional bonds.