noun Chiefly Northeastern U.S.
Midwestern U.S.. Also called callithump parade. a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
Origin: 1855–60, Related forms
Americanism; compare earlier callithumpian band
assembly of noisemakers on New Year's Eve, British dialect gallithumpians
disturbers of order at Parliamentary elections, probably equivalent to dial. gally
to frighten (as in gallicrow
scarecrow; akin to Old English agælwan
to scare) + thump
cal·li·thump·i·an, adjective, noun