# sis boom bah

> English word · Interjection

## Definitions
1. An exclamation of encouragement.
2. The characteristic sound made by fireworks.

## Etymology
Onomatopoeic

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sis-boom-bah