Not really an official thing(as far as I know), but a young woman from Ottawa, Canada, started a thread a few years ago at another forum I'm a member of. Well...that forum might've closed up shop, so I figured I'd see if we can get the idea to live on here. We could use "Try New Foods" or "TNFM" as a tag so all posts can be easily found. :D
...so get out there and try new foods, or tell us about something you recently ate for the first time!