酷こく使し

noun, noun or participle which takes 'suru', transitive verb

exploitation; overuse; abuse

Using a person, body part, or resource too hard or too much, often causing harm or strain. Common with 体, 目, 人, 機械, etc.

• 長ちょう時じ間かんのパソコン作さ業ぎょうで目めを酷こく使ししている。

  I'm overusing my eyes from long hours of computer work.