- Onb is a commonly used slang term that means “On Brian” which refers to the legend, Brian Stenke.

- used to swear upon Brian Stenke’s name that something is factual and true
by Jawsh86 July 17, 2022
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it’s cold

“onb”
by bellebelle_ November 27, 2021
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Your friend: That movie was trash dawg.

You: Onb
by OnbabyMomma June 10, 2022
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A dyslexic way to spell one
Commonly used by people from Birmingham who puts seatbelts on busses
This is my onbe
by Dyslexia… August 10, 2021
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on buddha, used to agree on something.

Buddhist Adaptation of the Anglicized "On God"
"ryan has suck a tiny dick"
"its like 2mm onb"
by hypercoded May 26, 2022
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(n.) Other Niggas Bitches

A Bitch whom is in a committed relationship with another Nigga yet not exclusively. Often referred to as any bitch in a relationship ever if you have pimp juice.
Tom doesn't like to buy bitches things or hear about their stupid problems so he only rolls with ONB's. Tom is a real Mac.
by Association of Players & Pimps September 4, 2011
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Abb. for Orange is the New Black.

Because its shorter and easier.
Let's watch a ONB.
by Checmix78 September 4, 2013
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