The main difference between a metrohawk and a mohawk is that the wearer of a metrohawk has a full head of hair, as opposed to a mohawk where the hair is shaved off on the sides leaving only a skunk-like strip left running down the middle of the head. The full head of hair oriented upwards makes the entire head as a whole resemble the shape of a closed up rose, further completing the look of this modern day feminine man's style.
The metrohawk is most easily achieved by loading up one's hair with product, taking the hands and placing them over the ears, then while pushing inward as if squeezing the head, sliding the hands upward, off the top of the head and up through the hair.
Jonathan: "Well gee-wiz Skip, it was a snap with that extra product you let me borrow. I just put it in my hair and let inspiration do the rest."
Skip: "I love it. It looks super preppy but still kinda hardcore at the same time, like you are almost going for a mohawk or something."
Jonathan: "Oh don't be a silly sam Skip. I'd never give myself a REAL mohawk. This is a metrohawk!"