casse-croûte casse-croute < European French casse croûte 'snack', literally 'break crust (of bread)' DCHP-2 (November 2016)
Non-Canadianism
1 n.
a snack bar.
This term is a borrowing from European French into British English in the 1960s, as evidence from the London Times shows. In French, the term is widespread. First found in British English, it also entered, not surprisingly, Canadian English (see the 1971 and 1980 quotations).
See also COD-2, s.v. "casse-croûte", which is marked "Cdn (Que.)".
- 1971  There's a new take-out service in our town you are going to hear a lot about. Only open about a month, I discovered Le Casse-Croute a few days ago while walking along Wellington East near the market.
- 1980  Because in Quebec the tax-free meal maximum is $1.50, experienced casse-croute users make two or three tips [sic] to the counter to keep each tab under the limit. Although a hamburger alone exceeds it, you can order soup and a hot dog, for example, then go back for pastry and coffee. 
- 1985  After the safari tour, if it's time for lunch, you could try the Igloo (pizzas, ice cream), the BBQ (burgers, barbecued chicken) Relais (hot dogs etc) or the Casse-Croute (dogs, burgers, onion rings etc.) 
- 1993  There was still time to buy a drink and a croc monsieur (submarine sandwich) at a casse croute (snack bar) and lunch in the sun on the green grass of a little park behind Perce's cobble beach. 
- 2007  Pulled lamb and mushroom poutine ($11) is more café than casse-croûte with the addition of tart chèvre and deeply intense peppercorn jus. 
2 n. — Food
a snack; the food available from such a bar (see meaning 1).
See meaning 1.