쨔사: a slang word originated from 자식아. it means "jerk" 임자지 : 임자+이(다)+지. 임자: owner 이다: to be 지: ending suffix used to intimate relation 임자지 means "is the owner" 먹는 게 임자지 means "the man who eat is the owner" 쌈박질: a dialect of 싸움. it means "fight" 캡짱: a slang originated from cap(captain)+장(head). it means "a boss who is the best fighter among the group". It can be used as the meaning of "extremely well"

I mean, you shouldn't read stuff like that. That will lead you nowhere. A pure waste of time.

No, this is from a manga so I can't read wrong :)

I have the feeling that you are reading the wrong stuff.