retachar=regresar (come back) chamacon=chico, niño mecatero=could come from "mecate" that is a plastic rope, in which context was used? ¿de nuevo savaste las frases de una película?

Don't agree with Josep at all, but it's true that maybe those words you're asking for will not be useful since could be just used in some specific area and due the excess of slang or regional words will not be understandable for other Spanish speakers.

you ask such a strange words that i cant imagine what language you ll be speaking when you decide you have learnt that language. But, i m starting to guess you watch at too many low quality southamerican tv series, if not, i cant made up any idea of where do you get those words.