ownknow 

Basically means, I dont know, but most of us black folks in Tennessee (or any southern state)shorten it like we do everything else. Why say, "I dont know," when you could say, "ownknow?"

Ghetto chick #1: "Mookie, which one of dem niggas done knocked yo ass up this time?"
Mookie: "Shiiiiit, I aint gone lie, ownknow!"

ownknow by Ms. Chocolate October 13, 2006

Oinknow 

Figure of speech, that means ‘I don’t Know’. Commonly heard in Australia. It’s basically a product of lazy slurred pronunciation of the English language.

Rob - “Where should we go to watch the footy tonight mate?”
Troy - “ Oinknow?”

Oinknow by Chewy_Dingdong July 31, 2018