Gypsy Hair Cut
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A: The Gypsy cut was basically a long layered haircut, and generally a much longer version of what became known as the "shag".
In other cases, the hair was instead elevated to a V-shaped guide with the shortest layers at the top center of the head, and growing longer and longer in a smooth progression. If you held the head upside down, you would see the ends of the hair form two separate angled planes that met at the center of the head.
The gypsy cut was always best-suited to women (and some men) with naturally wavy hair, or who had their hair permed to create large curls. Since the cut would prevent the curly hair from becoming too bushy, and instead give an even fullness throughout the style.
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See also:
1970s hair
How to cut a shag
Vintage hair and hairstyles