The contest held by S--t Towns of Australia pitted 32 big things around Australia against each other.

The big potato faced formidable competition, which included a giant koala and a Captain Cook statue before it reached the grand final.

Described as a "septic tank that someone painted brown and called a potato" by S--t Towns of Australia, the Big Potato beat an eight-foot bin dubbed 'The World's Tallest Bin' in Kalgoorlie to take out the top spot in a contest to find Australia's sh--test big thing.

However, despite being called the "biggest s--t thing", the Big Potato is looked upon favourably by the Robertson residents.

Locals are taking the win in their stride, with many honoured by the win and calling it a "hilarious joke."

Robertson playwright Melanie Tait said that for a long time the Big Potato was left off any list of what made it special.

"I feel like it's a bit of an honour," she said.

"I think it's great that hopefully more people will know about it.

"It puts us on the map."

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President of the Robertson Business Chamber, Tim Hewitt said he found it hilarious.

"Any publicity is good publicity," he said.

"It's just a joke, you know. It's a hilarious joke."

Also in on the joke is Robertson CTC president Jenny Kenna who said it was an "honour."

"I'm not offended by winning that at all," she said.