kick pleat

noun
1.
an inverted pleat extending upward 6 to 10 inches (15 to 25 cm) from the hemline at the back of a narrow skirt, to allow freedom in walking.
Origin
1930-35
British Dictionary definitions for kick pleat

kick pleat

noun
1.
a back pleat at the hem of a straight skirt to allow the wearer greater ease in walking