The term "eurotwinkin" is a combination of two words: "Euro" and "Twink". In the context of porn video tags, these terms have specific meanings.
"Euro" refers to European, indicating that the content features performers who are of European origin or the scene takes place in Europe. This could include various countries within Europe with diverse cultural backgrounds.
"Twink" is a slang term often used in gay pornography to describe younger, slender males, typically between the ages of 18 and 25. These individuals are usually hairless or have very little body hair, giving them an "innocent" or "fresh-faced" appearance.
So, when you see the term "eurotwinkin," it suggests a porn video featuring young, slender European males.