Natalie Zarrelli in Atlas Obscura:
Jenny Suomela grew up in Sweden, but began learning English in school as a young child. She currently lives in the United States, and is married to a man whose only language is English. If she's speaking with Swedish friends, however, you might hear more than a few English words and phrases thrown in: “det är awesome”, for example, means “it is awesome.” Popularly called Swenglish, this use of English in Sweden is a mix of the two languages; a practice common throughout the world.
This meddling of English with other tongues has become increasingly pervasive, used in schools, business meetings, online forums, and everywhere in between. There are estimated to be two billion people speaking dozens of varieties of English in the world, a number far beyond the estimated 340 million native English speakers. “I think there is international awareness of the global role of English, mainly because it is so ubiquitous, and inescapable,” says Robert McCrum, author of the book Globish and co-writer of the BBC series and book, The Story of English.