The term "callithump parade" refers to a boisterous, noisy parade, often featuring unconventional instruments like pots and pans. If you're looking for synonyms to use instead, you might try "cacophony procession", "clangorous march", or "racket parade". Other options include "clamor carnival", "tumultuous parade", or "uproarious march". If you're trying to convey a sense of chaos and fun, you could describe it as a "raucous revelry", a "cheerful cacophony", or a "joyful uproar". Whatever terminology you choose, it's clear that a callithump parade is a celebration of noise, energy, and whimsy.