n. A mythical Australian monster, said to inhabit swamps and lagoons.
n. An imposter or con-man.
The Century Dictionary and Cyclopedia
n. A fabulous animal supposed to inhabit water-holes and rivers.
n. An impostor.
Word Usage
"For Jimmy was no coward so long as he was not called upon to encounter the familiar demons of his people, the word bunyip being perhaps too often in his mouth."