The drop of the "s" in Nicaraguan spanish
I have been told that in Honduras, Nicaraguans are sometimes called "Mucos" because they drop the "s." Mucos being bulls without horns.
On a somewhat related note. It is interesting to note that Wikipedia mentions Nicaraguan spanish as being related to Galician spanish dialect. Could this be true? I have found that several surnames, at least in Esteli, do come from Galicia, Spain.