본때를

teach them a lesson

→ 본때
phrase Uncommon #10,036
teach them a lesson Usually appears in the expression 본때를 보여주다, meaning to teach someone a lesson or show them who's boss. 본때를 includes the object marker 를.
KO: 이번에는 본때를 보여줄 거야.
EN: This time, I'll teach them a lesson.

형님, 본때를 보여줘요

Bro, show them what you’re made of.

— 천공의 성 라퓨타 (1986)

형님 본때를 보여주세요

Show them what you’re made of, bro.

— 너자 2 (2025)

조건 한테 곽가권 본때를 보여줄래요

Will you show Jo Geon what Gwak-style martial arts is really made of?

— 무인 곽원갑 (2006)

본때를 보여 줄게요

I'll show you what I'm made of.

— 빅토리아 (2015)