Originated in Indianapolis, Indiana this term is used as an expression meaning Swear To God or "I Promise". It also used to express that you agree with someone or something.
Onna hood, Its on sight when I see you out tha gate!
Q: Do you really like my shoes? A: Swear To God ONNA HOOD!
Q: Do you really like my shoes? A: Swear To God ONNA HOOD!
by RealReviews June 23, 2019
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