Dinna means: A Scottish and Northumbrian dialect contraction of 'do not,' used in everyday speech across Scotland and parts of northern England. You'll hear it in casual conversation, traditional ballads, and. It is a dialectal or regional word and rarely appears in mainstream teen culture; usage usually points to a family, regional, or literary source rather than peer slang. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. As a place or proper-name reference it is purely descriptive.