Holy Musical Batman/Funny

If there was ever a song that could be considered Crowning Music of Funny, it would be "To Be a Man".

"Fuck You! I'm gonna kick your ass!"

The fight between Superman and Batman which degenerates into pulling each other's pants down and Batman is temporarily replaced by a blow-up doll.
Alfred's paper-thin disguises.
- Eventually culminating in the revelation that Alfred is also Spider-Man.
The Running Gag of Batman punching Meredith Stepien's characters in the face every time they're onstage together. This troper, who loves Meredith, still found it hilarious.
"'Villains of Gotham: FEAR ME!' It's signed... 'Bruce Wayne'! But then that's crossed out, and underneath is written... BATMAN!"
- My favorite part of that is Nicholas Strauss' accent. "Fare me!"
"I'm Bat Wayne! I mean Bruce Man! FUCK!" Becomes even better when it becomes Batman's answering machine.
The puns. My God, the puns...
A short but still hilarious moment when Robin sees a dog. Just imagine dark, brooding Batman say this:

Batman: Quickly Robin, PET IT.

This exchange:

"Hello, this is Commissioner Gordon. You better have some good news."
"Tonight will be a night... of terror!"
"What? That's terrible news!"

"Now when I was writing Huckleberry Finn..."
Superman says his Rogues Gallery is a lot cooler than most people realize. Enter Mr. Mxyzptlk.
Evil Sherlock Holmes. Just... Evil Sherlock Holmes.
- "My tibia! Now I'll never walk Evil Watson down the aisle!"
Two-Face attempts to leave the Rogues Gallery meeting in style. He fails.

Two-Face: Catch you all on the flip-side. *flips coin, losing it* Oh no, my coin! That's okay! 'Cause I always carry... *produces another coin* two!
Mr. Freeze: Get your broke ass out of here, Two-Face!

Obama sounding like George Bush during the time of Clinton.
Superman and Green Lantern's debate over whether or not Batman deserves to be everyone's favorite superhero.