What does this double entendre じゃなかったらいいのかよ mean? 101000 Teacher talking to 3 students: It's illegal to upload TV programs without permission. You can get up to 10 years of hard labor... ...10 million yen in fines... ...or both. _This is where my understanding gets a little blurry_ Student A: Huh?/Really?/Is that true? So would it be okay if it was permissible? Student A points to coming up the stairs: If Yoshio says its all right is it all right?

The teacher used the word to mean “without permission” in a legal sense. The student understood it as meaning “as one pleases,” “of one’s own free will,” or something like that. He is asking if he can upload TV programs if says OK because that’s, by his logic, .