A word meaning both scared and angry at the same time, hence the spelling. "sc"ared + a"ngry" = scangry. Could possibly be spelled with a "k" (i.e. skangry) for added ghetto credit, but the pronuciation remains the same.
That bad horror-movie remake made Miranda scangry as a grizzly in a hornet's nest, so we called up our rides as fast as we could and stayed out of her way.