Tōkaidōchū Hizakurige (東海道中膝栗毛), abbreviated as Hizakurige and known in translation as Shank's Mare, is a comic picaresque novel (kokkeibon) written by Jippensha Ikku (十返舎一九, 1765–1831) about the misadventures of two travelers on the Tōkaidō, the main road between Kyoto and Edo during the Edo period.
The two main characters, traveling from Edo to Kyoto on their pilgrimage to Ise Grand Shrine, are called Yajirobē (彌次郎兵衛) and Kitahachi (喜多八).
It details famous landmarks at each of the 53 post towns along the road, where the characters, often called Yaji and Kita, frequently find themselves in hilarious situations.
A second book was also written, called Zoku Hizakurige, which includes material on the Kiso Valley, Konpira, and Miyajima.
Comic events often ensue when Yaji or Kita try to sneak into bed with women, which happens at various inns along the road.