The Flash, Season 5

Ralph:
Now I realize that you're all way ahead of me in this time travel business, but guys, I think I just discovered something. So, if, if Nora can time travel, that means she can create new timelines, right? New timelines means that parallel timelines can exist. So, guys, I think that... a whole other universe could exist. I know, I know, it sounds crazy, but think about it. There could be, ah, an Earth where we're all bad guys, or another Earth where there's no world hunger, or another Earth where... where they never made that last Indiana Jones movie.... Think of the possibilities. It's like some kind of... Manyverse. [looks around at the rest of the team] Aaand everybody knows about the Manyverse.

Iris:
Multiverse. And so do you, Ralph.

Caitlin:
Breacher, Gypsy, Harry. What did you think we meant when we said that Harry was from Earth-2?

Ralph:
That he is from Earth "also". [off everyone's looks] You guys really need to make, like, a "Welcome" pamphlet, or at least a Powerpoint or something. [bangs his head on a whiteboard]