n. A small Australian parakeet (Melopsittacus undulatus) usually light green with black and yellow markings in the wild but bred in many colors; also called the budgie. Syn. -- budgerigar, budgereegah, budgerygah, budgie, grass parakeet, shell parakeet, Melopsittacus undulatus. [ WordNet 1.5 ]
2. small African parrot noted for showing affection for their mates. [ WordNet 1.5 ]