Definition & Meaning of "butterball"in English

What is the origin of the term "butterball" and how is it used?

"Butterball" originally referred to a small, plump turkey, first recorded in the early 20th century, emphasizing roundness and fatness. By the mid-20th century, it began to be applied figuratively to people who are overweight or chubby, drawing on the same image of round, compact shape. The term appears in informal speech, often in teasing or humorous contexts, but it can be offensive depending on tone and intent. It is generally considered derogatory, though sometimes used affectionately among friends or family.