尻しり餅もち

noun

falling on one's backside; pratfall

Almost always used in the phrase 尻餅をつく, meaning to fall and land on one's buttocks. The noun itself is rarely used independently.

See also: 尻餅をつく

• 凍こおった道みちで尻しり餅もちをついてしまった。

  I slipped on the icy road and fell on my backside.

• 子こ供どもが遊あそんでいて尻しり餅もちをついた。

  The child fell on his bottom while playing.

noun

first-birthday mochi; mochi for making a baby fall

A traditional custom: a large mochi is tied to a baby's back on or before its first birthday, causing the baby to fall backward (尻餅をつく) as a ritual to ensure healthy growth. This sense is culturally specific and less common in daily conversation.

• 一いっ歳さいの誕たん生じょう日びに、背せ中なかに尻しり餅もちを背せ負おわせる風ふう習しゅうがある。

  There is a custom of tying a large mochi to a baby's back on its first birthday.

• この地ち方ほうでは、尻しり餅もちを踏ふむことで子こ供どもの健すこやかな成せい長ちょうを願ねがう。

  In this region, they wish for the child's healthy growth by having it step on the first-birthday mochi.