Live performances and the 2012 deluxe edition of No! feature an extended version of the song with an additional bridge where Linnell lists more countries in this order: "Azerbaijan, Bolivia, Canada, Australia, Belgium, Chad, Afghanistan, Brunei, China, Denmark, Ecuador, Fiji, Guatemala."
Technically, there is no nation whose name begins with the letter X (Mexico and Luxembourg are the only existing countries that have the letter X in them) or W (Wales is a part of the United Kingdom, Wallachia is a historical and geographical region of Romania, Wallis is a territory of France, and Western Sahara is a disputed territory south of Morocco). The fictional "West Xylophone" is used as a stand-in for both of these letters. The band has joked that West Xylophone is the colonial name of what is now the "Republic of Marimba".