Apocalipsis is a direct cognate for "apocalypse". It's a powerful, dramatic word that you wouldn't expect to hear in a high-energy party song!
In the lyrics, they sing "En la discoteca hay un apocalipsis" (In the club, there's an apocalypse). They are using this word as a fun exaggeration to describe a party that is so wild, chaotic, and energetic that it feels like the end of the world. This creative use makes it a truly standout word.
"Muévelo" throws all manners out the window for one wild night out. Puerto Rican reggaeton pioneer Daddy Yankee teams up with longtime partner Nicky Jam, and right away they warn the authorities: "Disculpe señor oficial, hoy vamos a rumbear" ("Excuse me, officer, today we are going to party"). The atmosphere inside the club is pure chaos—what Nicky Jam calls an "apocalipsis" ("apocalypse"). Both artists spend their verses hyping up the dance floor, urging the DJ to keep the rhythm going ("Dj, suénalo, pégalo y hasta abajo vámonos" / "DJ, play it, stick it close, and let's go all the way down") while cheering on everyone dropping low.
Daddy Yankee jumps in with his signature speed and some wonderfully ridiculous club brags. He compares dancing to money, telling a woman to bounce "como si fuera un cheque en blanco" ("like a blank check"). He jokes that she is definitely not a couch ("tú no eres un mueble"), meaning she cannot sit still, and compares her energy to dance music producer David Guetta ("Más eléctrica que una pista de David Guetta" / "More electric than a David Guetta track"). He even drops gritty Caribbean street slang when he says "yo te guayo en piloto automático"—using guayar (to grind or scrape on the dance floor)—promising he can keep up without breaking a sweat.