A person bowing deeply which is known as dogeza in Japan. Used to express a sincere apology, or to request a large favour.
Many variations of this emoji are misinterpreted as a person doing push-ups, lying down to have a massage, or doing a cute "head resting on hands" gesture.
📅 Person Bowing was approved as part of Unicode 6.0 in 2010
under the name “Person Bowing Deeply”
and added to Emoji 1.0 in 2015.