Batman: You're looking at the next 10 to 15 years in Arkham Asylum, Hellgrammite.
Hellgrammite: I'm never going back to that roach motel, Batman.
Batman: Are you just going to watch, or could I get a little help here, Creeper?
Creeper: You got it, pal. Batman, Batman, he's our man. If that really totally disgusting freakishly deformed abomination can't beat him, no one can! Yay, Batman.
Batman: Not what I had in mind. Let's go.
Creeper: Oh, I'd love to. But I have group therapy in 15 minutes. And the other psychotics just hate it when I'm late.
Fire: Aye, time paradoxes give me a headache.
Ice: The key is to just nod and not think about them.
Booster Gold: Uh, I'm from the future. So how come I didn't know about this?
Rip Hunter: Cause you're just a time traveler, kid. I'm the Time Master.
Blue Beetle: Ohhh, no he didn't!
Guy Gardner: I'll go with Tora, cause, you know, the kid needs someone to watch her back.
Fire: Make sure that's all you are watching.
Ice: Look, cavemen! I wonder if we'll see any dinosaurs?
Guy Gardner: Where'd you go to school? Dinosaurs and men didn't exist in the same time period. (Ice looks disappointed) But, hey, anything's possible, right?
Pirate Batman: I like the cut of your jib, mateys. I'd be honored if you two would become permanent members of me crew.
Blue Beetle: Ha! Didn't even know I had a jib.
Rip Hunter: Time isn't linear. It's simultaneous. Events in the future create the present as much as events in the past do.
Fire: Ah, now I've really got a headache.
Ice: Not me.
Ice: What is this place?
Equinox: You have made a terrible mistake in coming here.
Blue Beetle: And we're walking toward the loud evil voice because?
Booster Gold: We're incredibly heroic. Or incredibly dumb.
Creeper: Who's on first?
Referencing the classic vaudeville Abbott & Costello comedy routine. The comedy duo first performed the routine during a tour in 1937, went on to do it on radio on The Kate Smith Hour in March 1938, and performed it in their movie debut in One Night in the Tropics (1940). They also performed the routine in The Naughty Nineties (1945) in what is considered their finest recorded rendition. The routine is based off the confusion caused by a baseball team where all of the players have names that are brief statements (Who, What, I Don't Know, Why, Because, Tomorrow, Today). Abbott tries to explain that Who is the first baseman, confusing Costello who keeps asking "Who's on first?" and being told "Yes."
Referencing the TV series Seinfeld, where Jerry's neighbor on the show is the postman Newman. They typically consider themselves enemies, and when they meet Jerry says "Hello, Newman!" and Newman says, "Hello, Jerry!"
Creeper: That's what she said!
Referencing a modern-day variant on the old sexual innuendo line "As the actress said to the bishop." The modern-day version first saw use in Wayne's World (1992), and became a catchphrase for Michael Scott (Steve Carrell) on The Office.
Guy Gardner: Bring it on, Flintstone!
Referencing the animated "modern stone age family" which first aired in 1960. The show revolved around Fred Flintstone, the patriarch of his family who, with his neighbor Barney and Barney's wife Betty, eventually got into a variety of family and suburban exploits. The show ran for six seasons and spawned multiple spinoff series, one animated theatrical feature, several TV specials, and two live-action theatrical movies.
Aquaman: Friends, Romans, countrymen, I am Aquaman.
Referencing the speech given by Antony in Shakespeare's Julius Caesar, Act 3, Scene 2, Page 4. Antony is speaking for the deceased Julius Caesar, but uses the speech to turn the crowd against Brutus, the man who struck Caesar down, supposedly in the name of freedom but really to serve his own ambition.