Reventar literally means "to burst" or "to explode." It's a strong, impactful verb that conveys a sense of breaking point or sudden release.
In the song, the lyrics say, "Si ya va a reventar la liga que sea de una vez" (If the rubber band is going to burst, let it be once and for all). Here, "la liga" (the rubber band) is a metaphor for the strained relationship, implying that it's stretched to its limit and about to break. The word reventar perfectly captures the urgency and finality of ending something that's no longer working.
Have you ever been stuck in a relationship that's clearly over, but you just keep dragging it out? Banda MS's "De Una Vez" totally gets it! This song is all about that moment when you realize you've "Ya le di vueltas a todo y no más no le encuentro ni el lado ni el modo" [I've gone over everything and I just can't find the way or the means]. It's about that frustrating feeling of trying to make something work that's already "en el lodo" [in the mud].
The lyrics are super blunt, saying, "Pa' qué le damos vueltas si este amor ya se acabó" [Why do we keep going in circles if this love is already over?]. The singer is basically saying, let's just cut ties "De una vez" [Once and for all] because this relationship is causing stress and bringing out the worst in them: "La neta es que contigo conocí eso del estrés, los vicios y lo malo" [The truth is that with you I learned about stress, vices, and bad things]. It's a powerful anthem for anyone who needs to finally say goodbye and make room for something better!