Originated in Oakville, "Chate" roughly describes a shitty deal or coming up short. The word's namesake was a student at OTHS (Oakville-Trafalgar Highschool) who was known to short-change you when dealing marijuana. It's primarily used by Oakvillians from the east side of town.

A person or people that purposefully causes chaos or mischief within a group for the sake of entertainment.

Slang from Oakville, Ont.
Shitty deal.

It can be describing a shitty(bad) situation in the maximum and minimum degree. A situation being a person, place, thing or event.

The word has come to mean something crappy, or a bad deal (usually for drugs). Originally, it was a guys name. I only met him twice, but it came from guys on his hockey team. His last name was Chater. If you fucked up, you were pulling a chater. It was most often shortened to chate. It then came to be used so much that it was a noun, a verb, and an adjective. Especially if you're from Oakville, read this: http://www.canada.com/ nationalpost/news/story.html ?id=4e8a527c-367f-41cb -8b3f-4e6a9ec5205f&k=30372
you'll have to take out the spaces, it's worth it, you will be ROTFLYFAO

To get ripped off, punked off, back stabbed or just simply chated out

Chate, if you're from oakville, you have used or heard this word.