腰回り

1. Origins, structure, and basic meaning

• Structure: 腰回り (こしまわり) joins waist 腰 with surrounding area 回り to mean either waist measurement or the area around the waist.
• Basic usage: It describes room in clothing and also the muscles loosened by exercise.

2. Common pitfalls and similar expressions

• A measurement versus a body area
  • Clothing context emphasizes circumference or fit, while 腰回りの筋肉 refers to the surrounding anatomical region.