Well try. Maybe you could have it both ways. As far as I know, the definition of vulgar is:

Characterized by ignorance of or lack of good breeding or taste:
relating to, or constituting the ordinary people in a society:
current; popular; common:
spoken by, or being in the language spoken by, the people generally; vernacular:
lacking in distinction, aesthetic value, or charm; banal; ordinary:

So..... :P