Wiktionary
zipperhead
Etymology 1 n. (context Canada military slang English) A soldier in the http://en.wikipedia.org/wiki/Royal%20Canadian%20Armoured%20Corps or in the Armoured Crewman military trade. Etymology 2
n. (context US military slang derogatory offensive ethnic slur English) A person of Asian descent.
Usage examples of "zipperhead".
I were, I would ask you how many times you used the racial expressions gook, slope, zipperhead, and slant-eyes.