pejorative nickname for the Canadian province of Ontario. Used mostly in regards to the the lack of soul people and places in Ontario posses. Compared to other provinces, where style, culture, and ingenuity play a dominant role, Ontario does not posses any of these qualities. Ontario is known for their anglo-saxon, conservative, overpopulated views, which diminish the respect even their own citizens have for each other.
Person 1: Hey Logan. Want to go party in Onterrible tonight?
Definitions include: A expression saying that someone doing something they can't or someone saying they will do something is false. Example: "I'm gonna dunk this 10 foot rim, ready?" Other says "How old are you?" He says "12." Boy says "That though.... Other ways of pronouncing it:That-Dhat Do(pronounce dat-do)