Dairy farmer Ebony Churchill captured the koala chase on video and uploaded it to her Facebook account on Friday, August 14.
Since then, the footage has gained more than 1.4 million views.
The social media hit shows the crazy koala chasing the quad bike, with Ms Churchill screaming in terror above the roar of the bike's engine.
"Far out, it's coming! Get away, get away," Ms Churchill can be heard yelling.
The determined koala catches up to the bike, jumps on its back wheel and hangs on for dear life. The dairy farmer stops, unable to go any further for fear of squashing the typically cute and cuddly animal.
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“I can't move. Where the bloody hell is it?
"Oh my god, it's on the friggin' bike. I don’t know what I’m going to do now.”
The footage has been shared almost 30,000 times.
