Te la pelaste is a classic Mexican slang phrase that literally translates to 'you peeled it'. Its real, idiomatic meaning is 'you blew it', 'you screwed up', or 'you lost your chance'.
In this breakup anthem, Xavi sings "Yo que te quería para siempre, te la pelaste y ahora next" (I wanted you forever, you blew it, and now, next). It's a powerful and confident way to tell an ex that they made a huge mistake and lost their opportunity with him. Learning phrases like this is key to understanding real, everyday Spanish beyond the textbook.
Heartbreak stings, but Xavi doesn't sit around moping for long. In "Next", this Mexican young gun starts off by admitting how sweet things felt at the start with "Todo empezó tan bonito" ("Everything started so pretty"), only to realize his ex was on a mission to break hearts. He is stung by the betrayal right now ("Ahorita duelen tus traiciones" [Right now your betrayals hurt]), but his cure is pure swagger: expensive tequila, new company, and a wallet full of cash to burn.
What makes this track pop is the sharp Mexican street slang. When he sings that his sadness will vanish with "un Clase Azul y un pinche par de morritas" ("a Clase Azul and a couple of girls"), he is name-dropping an ultra-premium tequila in its famous ceramic bottle alongside "morritas", which is casual slang for young women. He brags that he has "feria pa' tirar" (feria means money to throw around) and drops the brutally blunt Mexican idiom "te la pelaste" ("you blew it" or "you missed your chance"). His attitude flips fast: you walked away from someone who wanted you forever, so now you get replaced. On to the next!