Qué chimba is a very popular Colombian slang phrase, especially from Medellín where J Balvin is from. It's an enthusiastic expression that means "How cool!", "Awesome!", or "So great!".
In the song, J Balvin uses it to admire his partner, singing "Qué chimba de cuerpo y de cara" (What an awesome body and face). While the word chimba can be vulgar in other countries, in this context it's a high compliment. Learning this phrase is a perfect way to dive into the unique slang that defines modern reggaeton.
In "Rio", Colombian reggaeton star J Balvin drops the party-boy routine to celebrate finding a love that completely calmed his chaotic life. He opens by thanking heaven for his past mistakes because they led him straight to his partner: "Me presentaste a Cupido / Y ahora parcho con él" ("You introduced me to Cupid / And now I hang out with him"). The Colombian slang parchar means hanging out with friends, turning the god of love into his personal buddy. His wild nights out are officially over—he traded late-night partying and whiskey ("He dejado el whisky por usted" ["I left the whiskey for you"]) for quiet evenings at home, playing classic tracks to mask the noise from the neighbors.
Balvin stays grounded in his hometown slang while bragging about his girl's natural beauty, calling her "Una mamacita buena gente / Qué chimba de cuerpo y de cara" ("A kind-hearted babe / What an amazing body and face"). The word chimba is pure Colombian street talk for something top-tier and awesome. Even though he jokes that his heart once needed a paramedic ("A punta de tener el cora para un paramédico"), she revived it and brought him warmth when he was lost, wrapping around him like a hoodie in the cold ("Yo fui ese hoodie que te quitó to' el frío"). The central hook asks the ultimate question for anyone happily committed: why look for trouble in the streets when you already have everything you need at home?