부전자전이 · 부전자전을
like father, like son
Example
아들이 아빠처럼 축구를 좋아하니 부전자전이네요.
The son loves soccer just like his dad — like father, like son.
Word parts
부 father+전 pass on+자 son+전 pass on
Literally 'the father passes it down, the son passes it on'.
Good to know
For mothers and daughters, people say 모전여전.