The clip has been viewed more than 4 million times but it has now landed the social media star in hot water.
Mr Ungermann is facing a maximum fine of up to $1 million or a maximum sentence of seven years in jail after being charged with negligently disposing of waste causing environmental harm.
“It’s pretty scary but obviously I’m the one that did it and I’ve got to suffer the consequences,” he told 9News.
“I’m going to learn from this mistake, but all I’ve ever wanted to do is make people laugh, get the dogs and push mental health.”
Mr Ungermann made headlines earlier this week after donating $10,000 to an indigenous community.
The 35-year-old will be sentenced in court on December 21.