The title refers to a múcura , a traditional clay water jug.
While literal on the surface, the song is famous for its use of double entendre. The "broken jug" is a common metaphor in Latin culture for the loss of virginity. La Mucura Los Sonors
Their version features the bright, brassy sound of the Mexican tropical and cumbia scene of the 1970s and 80s. The title refers to a múcura , a traditional clay water jug