from the foreword to The Doric Dictionary by Douglas Kynoch:

Doric is a name given to broad and rustic dialect. Deriving from that spoken by the Dorians in ancient Greece, it has been applied in more recent times to the dialects of England and Scotland, while in Scotland itself the term refers pre-eminently to the dialect of the Scots language which is spoken in the north-eastern corner of the country. The Doric of North-east Scotland meets both the traditional qualifications. On the one hand, its broadness can present difficulty even for Scots in other parts of Scotland, while on the other, its richest manifestation has always been found in the rural hinterland, where the language has recorded and labelled all the trappings of everyday life in what was a largely farming and fishing community.



i hope that helps