Words or phrases unique to a group of people or region

1. Y'all (Southern United States)

2. Poutine (Canada)
3. G'day mate (Australia)
4. Lá breithe shona duit (Ireland)
5. Oi oi (United Kingdom)
6. Bodega (New York City)
7. Hoagie (Philadelphia)
8. Hella (Northern California)
9. Uff da (Midwest United States)
10. Avo (South Africa)