Carmesí translates to "crimson," a deep, rich red color. It's a more poetic and less common word than simply "rojo" (red), making it stand out.
In the song, the artist describes the woman's "labios carmesí" (crimson lips), painting a vivid and alluring picture. This specific color choice adds a touch of elegance and intensity, making the description more memorable and enticing.
LADRON ("Thief") is a flirty warning dressed up as a cuarteto party anthem. Luck Ra, joined by Karina and Ramky En Los Controles, plays the guy circling on the sidelines of someone else's relationship.
The verses set the scene: if her current partner ever makes her cry, the singer is ready to step in, no guilt attached. He compares himself to a wolf watching and waiting, drawn in by her face and her lips.
The hook turns that idea into a kind of proverb: a thief who steals from a thief gets a hundred years' pardon. In other words, if her boyfriend is already treating her badly, taking her for himself barely counts as stealing. It is a playful justification for chasing someone who is already spoken for, set to an upbeat, danceable cuarteto rhythm.