dad bod

"Dad bod" is a slang term referring to a body shape found mostly in middle-aged men, many of whom might be fathers. The phrase has been adopted in American culture to describe the physique of a man who was once athletic, or moderately fit, but now has a "beer belly" or "spare tire" (i.e., he has gained a noticeable amount of body fat around the waist as he aged, leading to abdominal obesity), but the arms, legs, and chest are usually in relatively good shape.