Who's the boss?

Nathan had a little discussion with Linnea yesterday when she didn't want to listen to us. He told her in a very firm voice:
- Listen to your mother, she's the boss!
Linnea answered in an equally firm voice:
- Nej mamma boss!!

And then the conversation continued like this:
- Who is the boss then, is Daddy the boss?
- NEJ Daddy boss!
- Is Lucas the boss?
- Nej Lucas boss!
- Is LINNEA the boss?!
- Nej Linnea boss!!
- Then who is the boss..?

Short paus, then Linnea answered:

- Grandma's boss.

Well, there you go, now we know. :)