Avengers
Natasha : I'm Eagle 1

Steve: What about everyone else?

Natasha : Tony is been there, done that

Pepper: Excuse me!?

Natasha: Steve is Currently doing that

Steve: Nat, no

Natasha: Thor is It happened in a dream

Thor: Thank you!

Natasha: Clint is I would if he wasn't married

Natasha: And Bruce

Bruce: Oh no

Natasha: Is Eagle 2

Bruce: Thank god

(Sorry not much of a Nat x Bruce shipper)

Percy Jackson
Leo: *bursts in the dining room door* We need codenames!

Annabeth: No.

Leo: *imidiatly walks out* Percy your girlfriend is terrifying

Percy: *walks in* Alright, I'm Eagle 1

Annabeth: Perceus-

Percy: Piper is been there, done that

Annabeth: -Jackson!

Percy: Annabeth is currently doing that

Piper: *laughs*

Annabeth: *blushing* Shut up Seaweed Brain

Percy: Hazel is it happened in a dream

Hazel: What?

Nico: I'm going to kill you Jackson

Percy: Jason is if I had to pick a guy

Jason: Dude you're going to get yourself killed

Percy: And Frank

Frank: *gulps*

Percy: Is Eagle 2

Frank: *sighs in relief*

Avatar: The Last Airbender
Toph: I've got it!

Sokko: What?

Toph: Codenames

Katara: Why?

Toph: So the fire nation soldiers don't know who we're talking to!

Zuko: That's the worst idea I've ever heard

Aang: I don't see why not

Toph: I'm Eagle 1

Toph: Sokka is been there, done that

Suki: What?!

Toph: Aang is currently doing that

Aang: *blushing*

Katara: Toph, why?

Toph: Zuko is it happened in a dream

Zuko: I'm confused

Toph: Katara is if I had to pick a girl

Katara: What!?

Suki: I don't want to know mine

Toph: You're, uh, Eagle 2

Once Upon a Time
Regina : From now on you will address me as Eagle 1

Hook: Now, why the bloody hell would we do that?

Regina: Gold is been there, done that

Henry: *to himself* I have made a grave mistake

Regina: Robin is currently doing that

Zelena: Fine by me

Regina: Hook is it happened once in a dream

Emma: What the hell Regina!?

Regina: Emma is if I had to pick a girl

Mary Margaret: Is there something you want to tell us, Regina?

Regina: Mary Margaret is Eagle 2

Hook: So Charming doesn't get one of your fun nicknames?

Regina: Ugh, David is I'd be lying if I hadn't thought about it

Henry: Why does the world hate me?

This was fun. I'm open to doing a part 3, just leave the Fandom in the comments