noun
body modification
Refers to deliberate alteration of the human body, such as tattooing, piercing, or scarification.
身体変工にはタトゥーやピアスが含まれる。
Body modification includes tattoos and piercings.
Compound of 身体 (body) and 変工 (modification, alteration). The exact origin is uncertain; it is a modern term likely coined to translate the English concept of body modification.