お尻

1. Origins, structure, and basic meaning

• Structure: お尻, read おしり, is an everyday body-part noun for the buttocks or rear.
• Basic usage: お尻に葉が付く marks where a leaf is stuck, while お尻を打つ marks the body part struck in a fall.

2. Common pitfalls and similar expressions

• An everyday body-part term
  • お尻 is an everyday, softened term for the buttocks, with お making the expression less blunt. Its register differs from formal anatomical terminology.