Vacile in this context refers to a casual, non-serious relationship or a 'fling'. It's a common slang term in some Spanish-speaking countries, particularly in urban music.
Big Soto uses it repeatedly to ask if the person only wants a casual encounter, explicitly stating "Nada de amor ni salidas al cine" (No love or movie dates). This word is central to the song's theme of defining the nature of a relationship, making it interesting for learners to understand modern colloquial Spanish.
Ever been in that situation where you're not sure if someone wants something serious or just a good time? Big Soto, Farruko, and Kobi Cantillo totally get it in "Vacile"! This song is all about that moment when you need to know: "Háblame claro y avísame si no quieres nada serio" [Speak clearly to me and let me know if you don't want anything serious].
It's a direct conversation, asking if what you're looking for is just a "vacile" [a good time], with "Nada de amor ni salidas al cine" [No love or movie dates]. The artists are ready to be discreet and keep things casual, like when they say, "Tú por tu la'o, yo por el mío / Y para to' el mundo solo somo' amigo'" [You on your side, me on mine / And to everyone else, we're just friends]. But there's also a hint of something more, with lines like "Yo quisiera / Que tú me quisieras ver to' el tiempo así como yo a ti" [I wish / That you would want to see me all the time like I do you]. It's a fun and honest look at modern relationships and setting expectations right from the start!