round shoulders

Standing erect is an example of a good habit, round shoulders a bad habit of this sort.

Round shoulders is most common among people whose occupation causes them to stoop.

What did they care that the desks were so constructed, as to crook spines, and turn in toes, and round shoulders?

Football and track work, debating societies and glee-clubs straightened his round shoulders and found him friends.

He knew the black head and the round shoulders of Mr. Stocks.