Merced literally means "mercy," but in the phrase a su merced it conveys being "at someone’s mercy" or completely under their control.
Quevedo sings, "me usa a su merced" (she uses me at her mercy), playing with the homophones USA and usa to show how the girl both studies in the USA and "uses" him however she pleases. It’s a poetic, somewhat archaic word that rarely appears in modern lyrics, making it stand out and perfect for your Spanish vocabulary list.
Columbia paints the story of a young woman who returns to her island after a demanding year at Columbia University, craving nothing but sun-soaked freedom and nightlife thrills. Her only plan is to toast the summer with friends and dodge anything that smells like commitment—until an unexpected spark flares on the dance floor. Quevedo slips into the role of the stranger who catches her eye, turning her “no-strings” agenda upside down with flirty glances, nervous smiles, and kisses that accidentally slip out an I love you.
The song captures that bittersweet magic of a vacation fling: late-night reggaetón drives, sunrise beach walks, and whispered promises that probably expire in August. Both lovers know the clock is ticking, yet they keep making memories to replay when distance and real life kick back in. Beneath the carefree beat lies a tug-of-war between independence and vulnerability—a reminder that even the most guarded hearts can trip over love when the rhythm is right.