Believe it or not, there are a good handful or more of military hair "styles" that you can call out by name when you are in the service, and will get a specific cut that is within regulations. There's the "high and tight", which is really, IMO, a modified mohawk. The high part means you are clipped without a guard all the way up to about the normal area where one parts the hair, the tight means what's left on top is left very short, and, as is the regulation for all military hair (at least in the Marines for males), the area between the shorn and short hair must be blended (progressive length change, a fade). Now, it is this progressive length change, IMO, that separates it from the mohawk, and the mohawk is against Marine Corps regs. Reason? It is eccentric. No eccentric hair allowed in the Marines.
Another cut you can call out by name is the horseshoe. You've probably all seen this somewhere before, either in real life or parodied on some show. This is where the hair is shorn about halfway up the sides, then the fade kicks in and from below the hat-line, it appears to be a fairly short flat-top. However, the horseshoe, is a bit different than the flat-top. The difference being that the length of the hair sticking up to make the flat-top is cut to the length that will result in the hair being shorn at the very top of the head. When looked at from above, this cut resembles, well, a horseshoe. For some reason, this style of hair is not "eccentric" and is allowed by Marine Corps regs, provided there is blending.
This, to me, was always the silliest option at the barber shop on base. I mean who would elect to look like this.....
http://www.rateitall.com/itemimages/57270.jpg
Well, apparently our catcher has. At least, when I saw him in dugout shots during this last series against the Yankees, it looked that way. I blame the horseshoe. It's eccentricty worked in the past, but it has clearly lost its vigor. We need more. f*** the regs Tek, we need a mohawk.