Hahaha hey! Well', first of all you don't say IDIOTO, you say IDIOTA. No matter if you say it to a man or a woman, it's always IDIOTA. That word, in Spanish, is not as offensive as it is in English. Idiota, menso and bobo are moreless the same thing. They might be taken as synonymous but, as a native speaker, I can tell you they're used under different contexts. I'd say that the only difference is the "grade of offense" that these words imply. For example, you say idiota to someone who offended you. You say menso to someone who made a spelling mistake and you say bobo to offend someone you love (like a brother or a boyfriend) Naca (or naco if it's a man) means someone lack of culture, whose tastes in music are reggaeton such as Don Omar or somethin') or banda (Banda Machos, for example). That word is very used by teenagers. Chaka is moreless the same. I think you shouldn't learn that slang hahaha, specially naco and chaka, they're quite offensive. Anyway, hope this helps you to understand slang better. greetings from Mexico.

Estas expresiones, se usan para insultar o agredir verbalmente a una persona - Idiota = persona que carece de inteligencia, torpe de entendimiento, imbécil, ignorante, estúpido. - Bobo= que posee escaso entendimiento, simple, baboso, lelo, tonto, cretino, cándido. - Menso= retardado en su entendimiento, retrasado I don't have any idea, what it means,naka and chaka ?

hola amiguita -idiota= persona que no es apreciable en un grupo social

Hi! About your question: "Idiota", "menso" y bobo" = Are synonyms and they mean something like a fool, idiot, moron, etc. ¿Naca y shaka? I never heard about these. Maybe are local words from some country. Bye!

idiota es un insulto. Menso es cuando hace algo mal, like when he doesn´t know a easy question bobo puede ser un insulto pero no muy malo y tambien puede ser en broma, you know.