"Community has pulled off one the most patient easter egg: in one episode of each of the first three seasons, the word "Beetlejuice" was used off-handedly in a joke. If you’ve seen the movie Beetlejuice, the titular mischievous ghost would appear in the world of the living if anyone said his name three times. So, sure enough, on the third mention by a Community character, this guy appears in the background for exactly two seconds. They patiently waited three years to reach that punchline."
making up your own fictional universe
creating an entire history for it
creating characters who have complex back stories
RESEARCHING NAMES WITH MEANINGS THAT CORRESPOND TO THE HISTORY AND UNIVERSE AND BACK STORIES YOU’VE COME UP WITH
then never writing or doing anything with it at all ever
My nephew was watching this and I almost burst into tears from the nostalgia…
The Simpsons did The Hangover back in 1999.