n. — Maritimes, esp. Nova Scotia, Food
a cake full of blueberries with a crumbly topping.
Type: 5. Frequency — The origin of blueberry buckle is unknown, but the term is today predominantly used in Nova Scotia (see Chart 1) with limited currency in Prince Edward Island. The earlier quotations (1935, 1961) suggest, however, that the term was once more widely used throughout Canada. It appears to be most frequent in Canada, although the term is used elsewhere as well (see Chart 2). As a regional dish, however, the term has a Canadian dimension.
See also COD-2, s.v. "blueberry buckle", which is marked "Cdn (Maritimes)", and DARE, s.v. "buckle" (n.).
See also: blueberry grunt
- A 'buckle' can also be made with peaches, nectarines, raspberries and any other fruit.
Images:

Chart 1: Regional Domain Search, 4 Nov. 2013 
Chart 2: Internet Domain Search, 4 Nov. 2013