腕白

1. Origins, structure, and basic meaning

• Structure: Written 腕白 and read わんぱく, it describes a child as highly mischievous, energetic, and hard to keep still.
• Basic usage: It appears with a muddy younger brother and memories of frequently climbing trees.

2. Common pitfalls and similar expressions

• Mischief need not imply malice
  • The word can carry an affectionate view of lively childhood behavior rather than serious wrongdoing.