根こん性じょう焼やき

noun, noun or participle which takes 'suru'

cigarette burn (as a test of toughness)

Slang term for a burn mark made by pressing a lit cigarette against the skin, often as a test of endurance or a form of bullying among youth.

• 不ふ良りょうグループの間あいだで根こん性じょう焼やきをするのが流行はやっていた。

  Among the delinquent group, doing cigarette burns was a trend.

• 彼かれの腕うでには根こん性じょう焼やきの跡あとがいくつも残のこっている。

  Several cigarette burn scars remain on his arm.