Anyone who owns an iPhone and an iPod or iPad and tries to convince you that the money they spent was justified.
All the iNerds are lined up outside the apple store to buy the newest iAmadork, it lets you do all the same things as your iPhone but it's bigger and more expensive.
Often used by ignorant lumberjacks suffering various degrees of hearing loss from using chainsaws on old growth timber.
2. There's no need to shout, old bean.
Often used by Oxford Dons or wearers of jacket sweaters with leather elbow patches (ironically) to gently inform the speaker their volume of speech is uncouthly excessive.