尻餅 しりもち falling on one's backside (behind, bottom); pratfall n mochi used to celebrate a child's first birthday; mochi tied to a baby's back if he starts walking before his first birthday in order to cause him to fall on his backside n Advanced ➥
鏡餅 かがみもち kagami mochi; New Year offering consisting of two mochi stacked on each other with a bitter orange on top, cut and eaten on January 11 n Advanced ➥