What is your username?
Adventuretime1
Please link to the wiki here:
http://totalbiscuit.wikia.com/wiki/TotalBiscuit_Wiki
How many edits have you made on that wiki?
160.
How many days/months have you been editing there?
Over 3 years. Went on a 2 year's hiatus before coming back to clean up.
On the Special Pages → Special:ListUsers when was the last time an admin edited, and who was it?
May 3rd, 2009 - Scarecroe
Any other information:
I have contributed to the wiki the most, and have been the only active user since 2011. I am also responsible for creating 5 out of the 7 pages that exist on that wiki (The remaining 2 were the main page and another page that was a bit offensive that I would like to permanently rid from the wiki). Though it is small, I hope someday I'd be able to make it that much more popular. I have also worked on, and an admin of, the OMFGCata wiki, and have contributed a lot to it. To put into perspective, both wikis have existed since c. 2010, I have joined both around the same time (Late 2011), but the OMFGCata wiki had already certain pages existing. The Totalbiscuit wiki was simply a blank main page (and other) when I found it.
Hi - one of the critical requirements for adopting a wiki is 1 solid week of active editing (i.e. making new pages, fixing up articles, adding content, building the wiki). By editing at least every day or two while you wait for this request to be processed, (which ranges from 7-10 days), you should meet that requirement. It doesn't have to be a lot of edits each day, it is just the *frequency* of the edits that Staff needs to see, to show your investment and commitment to the wiki. Happy editing! 
Joey (talk)