The exact origin of the meme is not exactly known.
What is sure is that not funny, didn’t laugh started to popularize on iFunny around 2018, after user memethief6969 posted the expression on the site.
In 2018 many image macros were made with the usage of not funny, didn’t laugh, usually featuring well-recognizable characters with indifferent facial expressions.
Later, in 2019, the meme’s focus shifted to YouTube videos. Most of these videos were poorly edited, and had not funny, didn’t laugh dubbed under them. These were also often pop-culture or meme references re-thought.
- Reddit – r/copypasta