A fan wrote “You look fab kidd” in the comments section of Thorburn’s most recent Instagram post which was of a paparazzi photo taken of her last week.
But the recent Dancing with the Stars contestant misread the comment and thought the fan had written, “You look fat”. And she was not impressed.
“Bahahaha fat-shaming me on my Instagram now that is a new one!” Thorburn wrote.
“I could come back with what size I wear but of course size is irrelevant anyway … just another number. Anyone reading this agree that this person is online trolling? I mean ‘fat’, it’s comical.”
Continuing the rant, Thorburn wrote: “What next? ‘I’m too old, short, tall, enjoying life too much, I should change my birth name, grow my hair.
“Seriously please let’s unite against this behaviour by adults when we are all trying to teach our children not to do it!”
Another fan then pointed out to Thorburn, “I read fab, not fat”.
“So sorry I misread that!” Thorburn wrote to the person who wrote the original message. “A week of criticism I just learned made me defensive. Note to self!”
The criticism Thorburn was referring to was several articles that popped up at the start of the week about the number plates on her new car.
Thorburn, whose relationship with Karl Stefanovic ended in 2016, was recently photographed driving a 2015 Mini Cooper with the number plates “Fizzy”, which just happens to be the nickname of Karl’s new wife, Jasmine.
There was speculation the number plate was a not-so-subtle dig at her ex, but Thorburn later opened up to KIIS FM’s Kyle and Jackie O and claimed she had no idea about the link between Fizzy and Jasmine.
“I didn’t know that was her nickname,” she told the radio duo. “It’s not common knowledge, is it?”
Thorburn then explained the number plates used to belong to a friend of hers.
“The car I purchased from my girlfriend who is moving overseas for a couple of years,” she said.
“She offered me to buy her car from her which has had the same number plates for four years. She actually owned the number plates on her previous car.
“She said, ‘I also want to keep the private plates’ because it has to do with her and another member of her family. She said, ‘Can you hold onto it (the plates)?’ And she actually still pays for the private plates.”