Overuse, Abuse
Noun and する verb
こくし
労働者を酷使するブラック企業をこのまま野放しにしていてもいいんですか。
Do you think it’s okay to let black companies that exploit their workers continue to take care of themselves?
If you use something in a cruel way it's called exploitation. You're probably going to overuse it, at that rate too. Cut it out, dude.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.