a youngster who plays baseball in a sandlot.
Origin of sandlotter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for sandlotter
Historical Examples of sandlotter
The similarity between the words "sandlotter" and "sansculotte" is problematically significant, but indubitably suggestive.The Devil's Dictionary