The 160-plus centimetre red kangaroo ploughed through clothes as Phyllis Johnson was taking down her washing and pushed her to the floor.
The kangaroo started to viciously kick Ms Johnson in her backyard in Charleville, Queensland before she managed to get to her feet and grab a broom to engage in combat with the attacker.
Striking at it several times, she dazed the agressive roo with a bit of help from the family dog before making it to the safety of her granny flat.
Ms Johnson escaped with a big gash to her leg but her son Rob Johnson said the roo could have killed her if it wasn't for the broom which helped chase it away.
"When she told me the roo was still here I went and had a look and found it in my workshop.
"Then it had a bit of a go at me."
Mr Johnson said he picked up a stick to scare it but the roo didn't flinch. He then ran inside and phoned the police.
Senior Sergeant Steve Perkins said it was one of the most unusual callouts he's had. Both were forced to ward off an attack with capsicum spray.
"It was aggressive. It attacked one of the officers," Sen Sgt Perkins told AAP.
The roo hung around the Johnsons' home, but National Parks and Wildlife officers have since taken it away. Mr Johnson said he hoped the roo would be relocated somewhere away from homes.
"It's not frightened of people at all," he said. "It's a real danger. If my mum didn't have the broom to chase it away, it could have killed her."
He said his mother is recovering at Charleville Hospital.
