What's the Most Obscure Language?

Do teams tend to just have one person that does the presentation? Or do you quite often get them sharing during the presentation. What's the most obscure language you've had someone do, other than exal macros? We get pateand quiet a bit. And i jus doesn't really slat together. It wasn't a language, it was like some kind of game generattor onla game gene, or something like that.