The word originated in Cuba to first describe the music and dance in the mid 19th century. And yes it now also means to go party but it's rarely used in Puerto Rico. It's just another word adopted in our lexicon from sharing a common history and culture with Cuba(as well as D.R.) We are more likely to say "Parisiar" or "Pari' or just simply "fiesta".
I think the first time I heard the word Rumba was on a I love Lucy episode.
I think the first time I heard the word Rumba was on a I love Lucy episode.