- (Australia) A blue-coated variety of the Australian Cattle Dog breed.
2003, Larry McMurtry, Duane's Depressed, page 75:
- Shorty the Sixth, as he was sometimes called, had been a very winning puppy, and they had kept him at home until he began to exhibit the same tendencies that Duane's blue heelers always exhibited, that is, a tendency to herd children in the same way they would have herded cattle or sheep: they nipped their heels.
2007, Graham Greenwood, A Truckie's Dream: The Allan Scott Story : His Official Biography, page 113:
- He always has his blue heeler dog in his office tucked away under his feet or near the door.
2008, Elizabeth Bruce, A Show Off, Just Like Your Father, page 92:
- For some time, Dan and Pat had been at me to get a dog so we took a trip to the Yagoona RSPCA and came back with a blue heeler pup.
- (Australia, slang) A police officer; (in plural) the police.
2008, Deborah N. David, The Janus Project, page 382:
- “Take a gander son, but be quick about it,” he said lighting a cigarette. “The blue heelers come by here and start snoopin about.”