Barranquilla is the name of a major port city in Colombia. While it's a proper noun, it's highly unique and central to the song's title and theme, making it an enticing word for learners.
The song title, "En Barranquilla Me Quedo," translates to "In Barranquilla I'm Staying." This phrase is a tribute to the city and its vibrant culture, particularly its famous carnival. For a learner, understanding this word unlocks the entire context and celebratory spirit of the song.