Hasshaku-sama is a famous internet ghost story, she is an female specter that takes the form of an impossibly tall lady, a height of eight feet or about 240 centimeters. Often said to have a deep or high mature voice in which she repeats the interjection "Po" 「ぽ」 repeatedly, and a habit of preying on young boys, usually ones who are nine to eleven years old.

She wears a long white dress and a hat, has pale skin, long black hair that cascades down her back, and massive breasts. Hasshaku-sama approaches her victims by seducing them with a sweet and attractive appearance as a disguise.