How dull - it's a valley sort of thing.
Afraid no bananas for us, Harry.
I went into my Sony Spanish, then American dictionary, no entry found. Then I went back to Spanish, hit the Oxford English by mistake - and there it was. Strange.....
And the opus itself would appear, after 15 pages, to concern gold or copper mining in Mexico, with (so far ) a few politically incorrect references to the native inhabitants of that nation, and what seems a fairly naughty description of a young lady.
I'll have a rest afore any further research....