Flash: (to Dr. Blizzard) What are you going to do now, Doc? Turn us into snow cones?

The Streak: (about the Injustice Guild) Only they would commit such a heinous act. And on a Sunday!

Green Lantern: Now all that's left is this nightmare.
Ice Cream Man: Being stuck in an ice cream truck for forty years - that's a nightmare.

Green Lantern: Why do I feel like this? They weren't real.
Hawkgirl: They gave their lives for us - that's real enough for me.

Flash: You should have been there. It was so freaky. Those cornball villains with their bad puns. And the heroes with their decoder rings - what's up with that? Still, Black Siren was a hottie.

Hawkgirl: Curiouser and curiouser.

This line is uttered by Alice in Lewis Carroll's Alice in Wonderland, who just like the League, found herself in a strange world.