Tio in Spain, Guey in Mexico

Those are spelled "tío" and "güey."

Dude is a guy-thing. Dude was used, at least when I was growing up, as a term similiar to "man", "guy", etc. I remember Jeff Spicoli in "Fast Times at Ridgemont High" saying "Learning about Cuba, and having some food." and "Make up your mind, dude, is he gonna s% or is he gonna kill us?" He was the classic surfer "dude" for lack of a better word.

dude - tipo, tío

synonyms: colega, hombre, tronco, hermano

edit: please do not use swearwords

I have also heard the word 'bato' used among Mexicans.

'Dude' could just refer to males, in an informal way. Since 'dude' can also be slang, a translation would have to take into consideration what the speaker is thinking. In my high school years, 'dude' was popular to use between the guys in the 'surfer' cliques.

Hi everybody, yes, the word cab*** can be used in Spain only as a more or less friendly term. But we are weird guys, so don't use that ever unless you have lived here for a while, meaning a very long while, otherwise you might get your nose punched.

I am sorry, I had to delete all the comments and posts.

Chamaco? Cuate? Chavo? One guy I met called everyone he ever saw "cuñado" . Same basic idea, I guess. A slangy, informal word for "guy".