A Pialba man, wearing only a g-string, chased a late-night intruder down his street until the would-be burglar threatened him with a "mini-cutlass".

Leon, 47, who asked for his surname to be withheld, said he heard a creak at the back door of his Stephenson St house after 11pm on Tuesday.

"I flung open the door and this guy ran down the stairs," he said.

The near-naked Leon pursued the man down the street, at one stage falling "and getting a bit of gravel rash".

He chased him to near the Centrepoint units, where the man pulled out a knife.

Read more at the Fraser Coast Chronicle