A mat in combination with a bare head is called Skullet in English.
A mat is a haircut. The sides of the hair are usually shaved or short. The back is long, or a few frugal hairs. This hairpower was especially popular in the eighties of the twentieth century.
In boys it is usually shaved on the sides and the pony is stuck up with gel like a crutch, or a prickly haircut from above.
A mat in girls is pretty ordinary, but this is rarely experienced as a mat. A punk variant is worn with, for example, one side shaded with a mat and the other side very long with colors.
In Flanders, a mat is often called a napkin or nap spoiler.
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