Derroche literally translates to "waste" or "squandering". However, in the context of this upbeat party song, it takes on a much more positive meaning of "extravagance", "splendor", or "excess".
Luis Fonsi sings about dancing "al ritmo de amor y derroche" (to the rhythm of love and extravagance). It describes a night of uninhibited celebration and passion, where you live lavishly in the moment without holding back. It's a fantastic word that perfectly captures the song's fun, carefree vibe.
Puerto Rican singer Luis Fonsi links up with British rapper Stefflon Don for "Calypso," and the whole track feels like drinking rum directly on the shore. Fonsi opens by watching someone dance by the sea: "Tu cuerpo frente al mar / Mezclando arena con sal" [Your body in front of the sea / Mixing sand with salt]. He promises that if they stay together, they will dance all night with "amor y derroche" [love and indulgence or extravagance], warning that staying out until dawn means "Corremos el riesgo / De despertar en mi cama" [We run the risk of waking up in my bed]. The party counts out rhythms across three languages—Spanish ("Un, dos, tres"), French ("Un, deux, trois"), and English ("One, two, three")—before chanting the Caribbean musical style, calypso, like a party spell.
Stefflon Don completely takes over the middle section with Jamaican Patois and British swagger, bringing lines like "Boom pon di riddim" [Boom on the rhythm] and "di gyal tek time" [the girl takes her time]. She boasts about cruising with the car roof down ("Top down, roll down your town") and demands the DJ spin the record back ("pull"). Fonsi fuels the fire with "un poquito de ese ron en tu boca" [a little bit of that rum in your mouth], quickly admitting he wants enough liquor poured so she goes wild ("pa' que te vuelvas loca"). It is loud, flirty, and built entirely around two people trying to dance their way from the beach into the same bedroom.