"There's a Noah's in the water!"
Where "Noah's Ark" Comes From
Rhyming slang for "shark," borrowed from the biblical story purely for the sound — "ark" rhymes with "shark," and the pairing has stuck around Australian beaches ever since.
Given how much beach culture matters in Australia, it's no surprise a rhyming term for one of the ocean's most feared creatures found a permanent home in everyday speech.
How Aussies Actually Use It
Usually shouted, and usually shortened to just "Noah's" — "there's a Noah's in the water!" is exactly the kind of urgent, adrenaline-charged warning you'd hope to hear at the beach if it mattered.
It's dark humour wrapped in a rhyme, which suits the Australian habit of joking about genuine dangers.
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