callithump
A somewhat riotous parade, accompanied with the blowing of tin horns and other discordant noises.
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You probably don't know what callithump is, but you will find out if you undertake to hoe sod-ground potatoes in July. It has something to do with brazen trumpets and violence. I became acquainted with callithump when I straightened out the asparagus-bed.
A burlesque serenade; a charivari.
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Where it comes from
Uncertain. Perhaps from calli- + thump, or an alteration and backformation from "Gallithumpian", a Dorset and Devon word from 1790s for a society of radical social reformers, in reference to "noisy disturbers of elections and meetings"
Adapted from the Wiktionary entry callithump (CC BY-SA 4.0).