While many Europeans speak three or four languages, hardly any of them speak all of Europe’s languages. But with so many countries in the relatively small area known as the European Union, they do encounter other languages they may or may not understand in speech or text. I don’t know who created this map, but when redditor biker_philosopher posted it, he confirmed the perspective of native Dutch speakers. You can enlarge the map here. To answer your questions, “black speech” refers to the Dark Tongue of Mordor in The Lord of the Rings. “Salsa Tequila” is the song you can listen to here. “Our second language” refers to how close Dutch is to English, although some commenters will tell you that Dutch resembles a drunk Englishman trying to speak German. Of course, people in all these nations could make a similar map from their own perspectives that would amuse or offend us just as much -if we could read it.
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