from The Century Dictionary and Cyclopedia
- n. A round sugar-plum, very strongly flavored with lemon.
Sorry, no etymologies found.
He's piling up a sour-ball that'll make him fight a policeman some day.
When a dog gets a perpetual sour-ball like that he's finished.
In time, very likely, he would be a hermit, or a "sour-ball" like Canby; he would sit at dances looking like a bull-elk that's been whipped out of the herd, and the girls would giggle at him.
He is an old sour-ball who thinks he is alive but evidently has been in the cemetery a long time.