Condenao' is a colloquial, clipped form of "condenado," Spanish for "condemned" or "convict." Dropping the final consonant gives it a street, sung feel, common in urban Latin music where words bend to fit the rhythm.
The chorus repeats it as a label: "Condenao' a quererte" ("condemned to love you"), turning the heavy word into a dramatic way of saying the singer simply cannot stop loving someone.
"El Condenao" is about being helplessly hooked on someone. Lola Índigo and Maka trade verses about a love so consuming it feels like a life sentence: they live "imprisoned" in each other's bodies, unable to think about anything else, all "solo por eso" (just for that) — for one stolen kiss.
The song leans into the drama on purpose. The narrator admits they're wrecking their own peace of mind just to please their partner, jealous, obsessive, and a little wounded by promises that turned out to be lies. It's a classic reggaeton confession: love as addiction, sweet and self-destructive at the same time.