There are 2 results of your search for bluetongue1.
bluetongue1
a small child, as they are close to the ground in height: I see that family has got a couple of blue tongues; Those blue tongues are noisy.
Contributor's comments: slang for children, small kids; relates to them being close to the ground like the blue tongue lizard: "Did you see so and so and his/her blue tongues? Look at those blue tongues aren't they making some noise."
bluetongue2
A roustabout who works for a specific shearer: Joe has a new bluetongue by the looks of things.
Contributor's comments: 18 to 20 year old male/s in the Mallee: "The blue tongues organized the car rally."