Who first came up with the name whoopie pie?

The exact origin of the name "whoopie pie" is unclear, but it is believed to have originated in the 1920s in New England, particularly among the Amish communities. One popular theory suggests that the name comes from the excitement expressed by children when they received the treat in their lunchboxes, exclaiming "Whoopie!" The term became widely used and popularized in various regions, particularly in Maine and Pennsylvania.