"Hullaballoo" is a lively and memorable word that often signifies a noisy commotion or excitement. If you're looking to add variety to your vocabulary, there are several great synonyms available. For example, you might try using "uproar," which suggests a loud, chaotic disturbance. "Commotion" is another possibility, implying a frenzied or agitated scene. Alternatively, "ruckus" is a fitting substitute, as it suggests a rowdy or boisterous reaction. Other options include "tumult," "clamor," "turmoil," or even "cacophony." No matter which synonym you choose, though, you're likely to capture the same sense of energy and activity that "hullaballoo" conveys.