You're missing some context. Much of the Leave campaign has been appealing to workers by labelling more wealthy socialists as "smug superior intellectual upper-

You're missing some context. Much of the Leave campaign has been appealing to workers by labelling more wealthy socialists as "smug superior intellectual upper-middle class Guardian readers" etc [1]. The author is just parodying that, he's not actually proud of being smug. [1] http://www.informationclearinghouse.info/article44970.htm http://www.informationclearinghouse.info/article44970.htm