An Australian colloquialism; to be in a state of confusion.
Often used in a threatening or otherwise negative context.
To not know whether one is Arthur or Martha

If that bloke goes anywhere near my girl, I'll bash him so hard he won't know if he's Arthur or Martha!
by MrKapper July 9, 2006
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A phrase that is slang for no, normally used when in relation to an activity
Ex.1
Guy 1: aye, pass the bong
Guy 2: I don't know about that one cheif
ex.2
Guy 1: ay bruh, can you pull out?
Guy 2: I don't know about that one chief
by 20$ is 20$ September 19, 2018
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1. A phrase that describes an inside joke among any number of people

2. A phrase that describes a reference between conversations had previously
by Thepinknudle August 15, 2022
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Something your amazon echo says when she can't answer a simple question, albeit claiming to be "the very model of digital intelligence". She even says it when you are telling her to do something and not asking her.
Me: Echo, play Blinding Lights by The Weeknd.
Echo: Sorry I don't know that one.
by Rotten Turkey June 29, 2021
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