Definition of town ball:
(n) :
(softball) A non-varsity softball game, typically played by youths (usually girls) under the age of 18. Frequently played in small cities and towns, sponsored by a local business and coached by volunteers.
(n) :
Alternative spelling of townball (“baseball precursor”). [Any of various games resembling rounders and baseball, played in North America in the 18th and 19th centuries.]