An element of traditional Japanese etiquette: kneeling directly on the ground and bowing to prostrate oneself until one's head touches the floor in order to show deference to a greatly revered high-class person, as a deep apology, or to express the desire for a favor from said person.

For the pose itself (without the intent of deference or apology), see [[prostration]].

h4. See also
* [[Naked dogeza]]
土下座