Yah, so frankly, other kids’ parents always terrified me because me and my friends were always getting in trouble when I was at their houses.
Laci apukája nagyon leszidott minket.
Laci’s dad scolded us big time.
“Minket” is an indefinite object. So “scolded” (us) uses the indefinite conjugation.
It gets tricky with points of view. Me (and its plural, us) and you (and its plural, you) are indefinite, but him/her/it (and their plural: them/it) are definite. I like to think of it this way: “me” and “you” are terms that change depending on who is talking. But both you and I will refer to an outside third person with exactly the same terminology. So first and second person are treated as indefinite, because the term varies based on point of view, while third person is treated as definite, because it doesn’t vary.
Anyways, that is my way of making sense of it. The point is, figuring out when to use a definite conjugation versus an indefinite conjugation isn’t as simple as “just look and see if there is a definite article versus an indefinite article.”