The phrase "small package" is an idiomatic expression that refers to something or someone that has a compact, concise and relatively small size. It can be used in various contexts such as describing physical attributes like height, weight, or overall appearance; referring to the dimensions of a product or item; or indicating the scope, scale, or impact of an idea, project, or accomplishment. In essence, it is a term that conveys the notion of something being compact and not taking up much space, whether physically or metaphorically speaking.