The sound is based on a gong, a large struck metal percussion instrument long used for signals, ceremonial music, and orchestral color. Online, short gong hits became a familiar editing cue for punchlines, dramatic reveals, and stereotype-driven parody edits because the attack is bold and the sustain fills space well. It remains popular in soundboards and meme clips because one strike can instantly signal suspense, theatricality, or a deliberately exaggerated joke without needing any spoken setup.