Perfunctorily!?

What the heck does "perfunctorily" mean? I knew the East Cost was different, but I didn't realize that moving here required learning a new dialect. Should I walk around with a Webster's in my pocket? Of coahse, they'll say, this is Boston! What are you thinking? Man, this place is wicked wee-id! That's it, I'm going out for some chowda'...