貧びん乏ぼう削けずり

noun, noun or participle which takes 'suru'

pencil sharpened at both ends; sharpening a pencil at both ends

Refers to the frugal practice of sharpening both ends of a pencil to use it completely. Can refer to the pencil itself or the act of sharpening it that way.

• 祖そ母ぼは貧びん乏ぼう削けずりにしてまで鉛えん筆ぴつを使つかい切きった。

  My grandmother used up pencils by sharpening them at both ends.

• 貧びん乏ぼう削けずりの鉛えん筆ぴつは、持もち運はこびに注ちゅう意いが必ひつ要ようだ。

  You need to be careful when carrying a pencil sharpened at both ends.