from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Australian & New Zealand Offensive Slang Used as a disparaging term for a British person, especially a recent immigrant.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A pom; a person of British descent, a Briton; an Englishman.
- adj. English; British.
Shortening and alteration of pomegranate, Pummy Grant, alterations of Jimmy Grant, probably rhyming alteration of immigrant.(American Heritage® Dictionary of the English Language, Fourth Edition)
From pom + -y (“diminutive suffix”). Australian from 1912. (Wiktionary)