googn.

1941 S. J. Baker Pop. Dict. Austral. Slang 32 Goog, an egg.

1943 S. J. Baker in Amer. Speech 18 256 We [sc. Australians] say full as a goog where Americans would say pie-eyed, plastered or tanked.

1945 S. J. Baker Austral. Lang. iv. 82 Goog, an egg (a word formed perhaps on the sense of gog, in goosgog, a gooseberry; U.S. slang has googs, spectacles—in all these cases roundness is implied).