Viralata is a slang term for a "mutt" or "stray dog". It's a creative compound word, literally meaning "can-turner" (vira-lata), painting a vivid picture of a stray knocking over trash cans to find food.
In "Perra," the artists use this word as part of a larger animal metaphor to embrace a wild, street-smart identity. It's a key piece of slang for understanding the song's raw energy and central theme.
Okay, so this song is wild and you have to be ready for it! J Balvin and Tokischa use a very direct and funny metaphor for pure, animalistic desire: dogs in heat. The whole song is built around this idea, and they don't hold back at all. The chorus literally says, "Yo soy una perra en calor / Estoy buscando un perro para queda'no' pegao'" [I'm a bitch in heat / I'm looking for a dog to get stuck with]. It's a blunt and playful way of talking about intense physical attraction.
Both artists fully commit to the theme. J Balvin warns everyone, "Cuidado, que este perro anda sin bozal" [Careful, this dog is without a muzzle], comparing himself to an untamed animal. But Tokischa might just steal the show with her verses. She proudly declares, "Soy perra callejera con la popola de raza" [I'm a street dog with a purebred pussy] and later adds the hilarious line, "Me pusieron un bozal porque estoy muy animal" [They put a muzzle on me because I'm too much of an animal]. It's an over-the-top, energetic song about embracing your most basic instincts.