It is a word composed of two words in nahuatl mazatl and coatl, which together are pronunciarian " mazatlcoatl " and that they appoint a large snake constrictor boas family present in Mexican territory, feature is similar to a Mexican Deer head more smaller than the deer which was called " mazatl " In addition to the word " coatl " that means snake, designate a snake head servant.
It's the name of an American constrictor snake. In some parts they call it "deer head", in fact the word masacuata is of Nahuatl origin and that is its meaning ( mass : deer and coatl;serpeinte). They also call it mazacuata. Name of a Mexican legend about a gigantic snake. Boa species from Central America.