A device, typically wood, metal, or plastic, which is swung to try to make contact with baseballs.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "baseball bat" in a sentence
"Arnie's own leg thumped into it, much as a baseball bat would a twig."
"You saw these photos all over Arkansas, though usually a dead deer or a baseball bat or a football was part of it, instead of a kendo shinai; it was the same, the father passing on what he knew, the boy, though distant, hungry for it."
"Had a little ten-cent baseball bat with a placard on it, "Join Or Else"."