![1girl bad_id bad_pixiv_id frog green_eyes green_hair hat highres kochiya_sanae long_hair microskirt moon one_eye_closed panties santa_costume santa_hat second_heaven skirt solo striped striped_panties thighhighs touhou underwear v rating:q score:4 post #814714](/cdn_image/preview/a1/ff/a1ff731906816beb1b905ffe7934cba7.jpg)
A very short skirt that exposes the thighs and the lower portion of the buttocks, as well as underwear, if worn.
Not to be confused with a miniskirt where the hemline is above the knees, but does not completely expose the thighs.
This tag implicates skirt (learn more).