The inventors of the mixture named it after two friends of the cuadrilla known as "Kalimero" (after the Calimero chicken character) and "Motxo", hence the name "Kalimotxo".
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The current name, "Kalimotxo", is attributed to the "Antzarrak cuadrilla" ("Geese young friends circle"), which supposedly coined it during the 1972 Puerto Viejo festivities (in Algorta, Getxo, Basque Country).