Means just kidding. Navajo (johnny) slang. Most Navajos would relate.
Said like The Canadian slang. How about them AZ Cardinals EEYY?
Or Cholo style. What up EEYY?
Has to be dragged out though. aaaaayyyyy or aaaaaaaaaa.
You could mess with a person make it sound serious but after a pause you put aaayyy at the end, the person your fucking with will know you were fucking with them. They'll be relieved but at the same time they'll want to punch you in the fuckin face,
I had sex with Marisa Miller.. aaayyyy
The beers all gone... aaayyy
I wrecked your ride.... aaayyy