What does "I've got it" mean? Could you teach me some similar expressions please?
In this context, "I've got it" is meant in the literal sense - Gru has the moon in his hands (in his possession), so he's stating that he has gotten (obtained, achieved) it. There aren't really any other expressions that work better than "I've got it" in this situation, but you can also say "I've done it" or "I got it" here without changing the meaning of the sentence. Ex: A: Did you get what I told you to buy? B: Yep, I've got it. Ex: I got the limited edition figurine I've been waiting for.