The Legend of Korra, Season 4

Korra:
That was terrible.

Toph:
Ha! Maybe for you. I had a great time. I never realized how much I missed tormenting the Avatar. I wish you were putting up more of a fight, but it was still fun.

Korra:
You were tossing me around like a rag doll all day long.

Toph:
I know! And I'm an old lady! Imagine me in my prime. [laughing] I would have destroyed you!

Korra:
I just don't understand why I can't get back to my former self. It's like ... I'm a step slower. I'm tentative, I'm out of sync, I just can't get back in the groove.

Toph:
[matter-of-factly] Probably carrying around that metal doesn't help.

Korra:
[surprised] What metal?

Toph:
The little bits of metal poison stuck in your body. [Pause] You mean to tell me you can't feel metal in your own body?! You really are the worst Avatar ever.

Korra:
I thought Su got it all out...

Toph:
No, my girls never really picked up metalbending all that well, if you ask me.

Korra:
[excited] That's been my problem this entire time! [grabbing Toph by the shoulders] I gotta get it out! You can get it out for me, right?

Toph:
Who do you think you're talking to? [puts her hand on Korra's face, pushing her away]