Pila literally means "battery" or "pile". However, in many Spanish-speaking contexts, especially in slang and informal speech, it's used to mean "energy" or "a lot of something".
In the song, the line "Traigo pila pa' rato" means "I have energy for a while" or "I have a lot of stamina for a while." It's a common and versatile expression that adds a dynamic feel to the lyrics, implying readiness and endurance.
Argentine producer Bizarrap joins forces with Mexican singer Natanael Cano on this fusion track, and Cano wastes zero time playing nice. Right from the jump, he tells an ex she belongs to the past: "Por acá ya no hay rastro / De lo que conocías de mí" ("Around here there is no trace left / Of what you used to know about me"). He even told his own mother they broke up ("A mi mamá el recado / Le dije que cortamos"), explaining that while he has no time to waste on her, he certainly has cash to throw around. Cano flaunts his rising fame with the boast "Estamos de moda entre las de veinte" ("We're in style among the twenty-year-olds"), rocking a Burberry trench coat ("Burberry la gabardina") on his way to Argentina while other women fight for his attention.
Cano does not hold back any punches when addressing the breakup. He brutally shrugs her off with "Mija, no fuiste bastante / No te sientas la mejor / Fuiste una más del montón" ("Sweetheart, you weren't enough / Don't feel like you're the best / You were just another one in the crowd"). To explain the regional flavor: he shouts out "Corridos tumbados" (the modern wave of urban Mexican ballads he helped pioneer), uses Mexican slang like "gallo" (a weed joint) when he sings "Me fumo un gallo y me levanto" ("I smoke a joint and get up"), and drops Argentine street slang with "mina" (a girl or woman). Even while dressed in designer Valentino and sipping top-shelf wine with a new partner, Cano admits that memories of his former flame still flash through his mind—before he immediately moves on to the next person waiting for him.