Time Traveler 1: Guys, look what I brought. *holds up a stuffed owl*
Time Traveler 2: Pfft, lame.
Time Traveler 1: Oh yeah. What do you have in that tube thing?
Time Traveler 2: It's a big-ass poster of Doctor Manhattan.
Time Traveler 3: *lobs something at the window*
Time Travelers 1 and 2: Dude, what did you do!?
Time Traveler 3: I threw a whole frozen pie in there.
Time travelers have realized that Bruce Wayne will always, without exception, base his crimefighting persona on the first thing to crash into his window on a particular night. Now, they have an ongoing contest to see who can make him adopt the most ridiculous persona.
Comedian: Thanks everyone, and don't forget to tip your waiter!
Gus: What? But our waiter is so nice.
Luz: He meant "Tip with money!"
Eda: (about to push the waiter) OHHHHHH...
Because of a clip of Neil Patrick Harris performing a lipsync/dance to Spice Up Your Life, I put myself on a crash course of Doctor Who and am now a new fan.
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And because I am (1) on Reddit and (2) also a fan of Gravity Falls, I was absolutely cackling at this post on the Gravity Falls subreddit.
Note: the OP admitted to the error in the title (titles cannot be edited once you post it on Reddit); Disney only distributes the series.
For context: one episode of the Doctor Who 60th Anniversary Special has the Doctor and Donna time travel and meet Isaac Newton about to make his discovery of gravity. Donna "spoilered" Newton before they depart and Isaac misremembered what they said and decided to call the new science "MAVITY".