Ono no Komachi
Though from a much later period (15th century), this poem utilizes a multi-layered play on the literary term utamakura ("poem-pillow"). An utamakura is a place-name that is described with set words and associated constantly with the same scenery, season, time of day, etc...; poets often kept notes of their favorite tropes of this sort. Two of the Six Poetic Immortals of the Kokin Wakashū era were the Priest Henjou and Ono no Komachi, who were reputed to be romantically involved despite their competition. The literary term utamakura is here being used for one of its literal constitutive words, "pillow," to imply that Henjou and Komachi were sleeping together. The poem is also referencing similar scenes in the Gosenshu and Yamato Monogatari. Kakekotoba, as this poem shows, are often humorous displays of the writer's wit.