'Oh man I saw the grossest thing last night.'
'Oh, dude, what happened?'
'I walked in on my room mate.'
'I bet that would have been spectacular.'
'Banging like a dunny door in a thunderstorm.'
by theodore20 November 2, 2005
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Australian descriptive metaphor.

The person in question is of such incompetence or stupidity they indeed couldn't train a choko vine to grow up a dunny wall. Commonly used to refer to a dim workmate or acquaintance.

The choko (also known as a cheyote or chouchou, among others) being an extremely hardy vine fruit that, left to its own devices, will grow up virtually any surface.
by TrajeAUS_ January 15, 2011
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when a joke is so outrightly stupid, it's funny
peter: "hey Jamal, can you pass the salt?"
Jamal: "i don't know peter, cAAAAAAAAAAAANNN I PASS THE SALT" *giggles*
Peter: jamal, you fucking dumbass, you're so dunny
by dxnyxmxsx March 19, 2017
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A phrase exclaimed by someone in the Jackbox Games fandom when Billy o Brien appears in a split screenshot or a piece of fan work. This is also said character’s catchphrase.
Jackbox: *Puts Billy o Brien in a frame split second of the game*
The Discord chat: IT’S THE DUNNY!!!!
by cupcakedestroyer August 30, 2022
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The Australian word for ‘toilet’ ‘potty’ ‘loo’.
Oh man, I need the dunny”,
by Bluey_fan September 3, 2021
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