The Brief: Dad bod refers to the body composition of a stereotypical middle-aged father.

DEEP DIVE
The phrase essentially celebrates the male beer belly look. In contrast to a daddy, someone with a dad bod is seen as attractive because he is so average-looking.
Abs and muscles are overrated, get yourself a dude with a dad bod to cuddle up to🤪
— Chloe🦋 (@xChlxex) March 3, 2019
If you follow a dad bod, he’ll lead you to pizza and beer.
— Spaced (@Spaced_Cowboy00) March 2, 2019