Stoolball | Definition of Stoolball by Merriam-Webster.

How do you spell stool for poop?

2A piece of feces.

What does Stoll mean?

German: from Middle High German, Middle Low German stolle 'prop', 'support', 'frame', hence a metonymic occupational name for a carpenter, or a nickname for a rigid person. Jewish (Ashkenazic): unexplained. Similar surnames: Stolz, Toll, Still, Stull, Stall, Stohl, Stock, Kroll, Groll, Soll.