Such a cute little word. The kind of word Hermione Granger might use when turning Crabbe or Goyle’s burgeoning pubic hair a funny colour when she catches them engaging in the first of many homosexual fumbles under the ever watchful eye of Moaning Myrtle in the first floor girls’ bathroom. In fact, the political ideology that advocates the use of military threat or action over diplomacy in foreign relations is characterised by strong flavours of nationalism with more than a soupçon of moral superiority. So quite appropriately Slytherin-y really.
In more colloquial terms, it refers to excessive bias in judging one’s own country as superior to others. As an Australian, I’m all too familiar with jingoism. We’re so great at it, it should be a national sport. Although, it’s hard not to feel superior when your most internationally recognised song elegantly rhymes ‘under’ with ‘chunder’ and your favoured sporting chant is the thought provoking ‘Aussie, Aussie, Aussie, Oi, Oi, Oi’.
May I take a moment here to thank the many folks in various foreign lands who over the years, clearly wanting to ensure I feel at home, take the time to repeat what I’ve just said back to me in an excellent interpretation of an Australian accent. Yes people, it IS as hilarious as you think it is and it never, EVER gets old. I promise to use only cockney rhyming slang when responding to your question about whether I met your sister who did a gap year in Cairns.