noun. A quality rarely found in bunnies.
Real citation: "@Karoli yeah - it was classic HRC, classy but mildly dismissive and just a hint of aggressive dontfuckwithmyshit-ishness"
(Feb. 16, 2010, J.C. Lee, Twitter, http://twitter.com/jclee1230/statuses/9218686668)
Made-up citation: "I wish I had more dontfuckwithmyshit-ishness and not as much pleasepleasefuckwithmyshit-itude."