The traditional Cajun dance party where families gather for live music is called a fais do-do.
A fais do-do is a Cajun social dance gathering, traditionally featuring live Cajun music, dancing, and community celebration. The expression became associated with family dances in Louisiana, where children might be taken along and settled in a nearby room while adults danced.
The phrase is often linked to “fais dodo,” a French expression meaning “go to sleep,” especially in the context of a lullaby. However, folklorist Joshua Caffery has argued that the term may instead relate to the dance call “dos à dos,” meaning back to back. The etymology remains debated.
A fais do-do is not the same as zydeco, which is a musical genre and cultural tradition. Mardi Gras is a seasonal festival, while a crawfish boil is a communal meal. Those events can include music and dancing, but they are not the specific name for the Cajun dance party.