VIDEOS:
Power of Potluck ending
"Power of Potluck" ends with an unnamed character opening its mouth to reveal a crying man, who Moony proceeds to jam into her square hole. Even ENA doesn't understand what's happening.
Example of:
Gainax Ending
The worst day of my life
Example of:
Mood-Swinger
ENA vs. Talking Heads
Example of:
Shout-Out