Jokeapedia is a Referata-based MediaWiki site with collections of jokes. Many of the jokes are very hilarious.
It is founded and operated by MatthewPW, the former founder of WikiBridge - a site that went down in November 2016.
A user account is required to contribute to the site.
As of May 2017, the site is heavily inactive. This is not the first site that the founder seems to have at least partially abandoned, so it is questionable whether the founder is a truly dedicated founder or whether they just like to experiment with wikis.