[explorator]

I've herard Mexican speakers a Spanish extremely similar to ours, it only differed slightly in entonation and of course in the pronunciation of c/z. About the phrases you wrote, I can understand some words, but I make no sense of most of them. Probably you won't be able to understand some slang phrases used mostly by young people, military (mainly at the Legion), or lower class people eg: "encalamé el raca allí", "me han cicuatado el peluco", or the probably most frecuent young people expresión "guay".

PS: Nowadays we have here a lot of American-Spanish speakers living in Spain, and we have learned that we should not use the verb "coger", in front of them. It is very funy becouse for us that verb is absolutely neutral. Something similar happens with the word "concha", by the way a very common female name here in Spain.