New England slang
New England Slang : Any word that ends with "R" or more spacifically "ER" (UUR) , You replace that with "AH" . For instance : Father would be :
Fathah . Mother : Mothah , Yes sir would be
Yesah and so on . It actually retaines a lot of Old English pronounciations as well . It is spoken through out New England and stretches into Up-State New York (although it varies a bit there) and even into Canada (Eastern) ...