Bird Person and Morty in “Unfinished Business”

Morty, do you know what wubba lubba dub dub means?

Oh, that's just Rick's stupid nonsense catchphrase.

It's not nonsense at all. In my people's tongue, it means, I am in great pain. Please help me.

Well, I got news for ya—he's saying it ironically.

No, Morty. Your grandfather is indeed in very deep pain. That is why he must numb himself.

Come on... uh—

Bird Person.

Come on, Bird Person! Rick's not that complicated! He's just a... huge asshole!

Then why do care so much if you are no longer allowed to continue on your adventures together? It appears fate has presented you with an opportunity to free yourself of Rick forever.

Y'know what, you're right. I shouldn't even care! This is probably the best thing that could have happened to me! I'm sick of having adventures with Rick!

My people have another saying. Gubba nub nub doo rah kah. It means, Whatever lets you sleep at night.