You could, just as long as you keep it at that. The term actually does describe a valid political ideology: socialism combined with nationalism instead of the more common socialism combined with globalism, i.e. internationalist socialism ('workers of the world, unite' etc.). The association with Nazism makes it close to impossible to use the term in a 'neutral' way but in itself it just describes a nationalist movement which espouses socialist ideas.
Yeah, and their leader just happens to be a man disgruntled with the inefficiency and bureaucracy of democracy, mostly famous for his intense emotional political speeches, who blames most if not all of society's problems on his political opponents and/or ethnic minorities.