Real Dictionary

stickball in American English
a game like baseball played by children, as on city streets, with improvised equipment such as a broom handle and a soft rubber ball
noun: a form of baseball played in the streets, on playgrounds, etc., in which a rubber ball and a broomstick or the like are used in place of a baseball and bat

stickball in British English
noun: a team game based on baseball, played in the street using a rubber ball and the handle of a sweeping brush