signal gong ( synonym found)
Definition of signal gong:

°A gathering of people who sing to recorded music.
°applied to music that people like to sing.
"Abba had a talent for writing great singalong pop songs."
Definition of signal gong:

°A gathering of people who sing to recorded music.
°applied to music that people like to sing.
"Abba had a talent for writing great singalong pop songs."
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