The hairstyle, also called an "undercut", which was popular in the 1920s - 40s, which has once again become fashionable in the early 21st century. The haircut is characterized by long hair on the top of the head which is parted either way, and having the sides and the back of the head buzzed extremely short. The hair on the top of the head is often held in place by some type of styling gel or wax. The haircut was especially popular among the various military and civilian organizations of the National Socialist Party. Essentially, it makes men look like they belong in the Hitler youth, or some sort of Aryan fascist.
Person 1: Dude, what kind of weird haircut does that guy have?
Person 2: Oh, that's just a Hitler Youth Haircut.
Person 1: That guys is trying way too hard to look like Ryan Gosling.
Person 2: I know, what a douche.
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