La Ingrata is a fast-paced fusion of norteño accordion and alternative rock where Café Tacvba tells the story of a jilted lover who has absolutely had it. The singer calls his ex "ingrata" – an ungrateful woman – and rejects every I-miss-you and I-love-you she throws his way. What starts as wounded pride quickly snowballs into mock-dramatic threats, showing just how far hurt feelings can twist into dark humor.
Under the lively beat, the lyrics paint a picture of intense heartbreak, resentment, and the toxic side of machismo. The narrator flips between begging her to stay away, reminding her of the memories she can never erase, and even fantasizing about violent revenge. It is over-the-top on purpose: the band uses exaggeration to critique the melodramatic, macho posture often found in classic Mexican ballads. Listeners get a catchy tune, a cautionary tale about unchecked jealousy, and a wink from Café Tacvba saying, “See how ridiculous this looks when taken to the extreme?”