Butch cut
A butch cut is a type of haircut in which the hair on the top of the head is cut short in every dimension. The top and the upper portion of the back and sides are cut the same length, generally between 1⁄4 and 3⁄4 inch, following the contour of the head. The hair below the upper portion of the sides and back of the head is tapered short or semi-short with a clipper, in the same manner as a crew cut. A variant form may have a slight graduation of the top hair longer from back to front or a quickly graduated bit of hair at the front hairline to achieve a little flip up of the hair at the forehead. A butch that is cut at less than 1⁄4 inch on top may be referred to as a burr. A butch that is cut at 1⁄4 inch or longer on top, and especially one that shows natural curl, depending on length, may be referred to as a short brush cut or brush cut. Butch cuts are traditionally groomed with hair control wax, commonly referred to as butch wax.
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Wikipedia