Fundoshi pushed slightly aside so that the genitals are exposed. This way sexual actions may be had without pulling the underwear down or completely off.
Do not confuse with Fundoshi Pull, which is for when they are pulled down to the thighs, or are being actively Pulling Own Clothes or another.
Use with Male Underwear Aside if the fundoshi seems to be used as Male Underwear and not outerwear (like during Festivals and rituals).