A person who, while travelling abroad, carries teabags and jar of marmite.
McGrath's definition"everyone born in England" is currently the liberal line, and it has much to commend it; but many undoubtedly Scottish, Welsh, Irish and Cornish people were undoubtedly born in England, and I am not sure if they would all agree with him.
   Possibly a very tricky a word to define, much like "folk".