noun phrase. A blanket-with-sleeves-related mental disorder that can be alleviated with a straitjacket.
Real citation: "After suffering through that annoying Snuggie commercial today for the umpteenth time, I decided to look online to see if anyone had written about it, and sure enough, I came across this column and this one. The monk-like man eating popcorn reminds me of 'Mr. Atoz' from 'Star Trek' (see above photo); and I always wonder what kind of people would possibly go out in public wearing Snuggies! Anyone else suffering from Snuggie Derangement Syndrome?"
(Jan. 3, 2009, Oyvayblog, http://oyvayblog.blogspot.com/2009/01/snuggie-derangement-syndrome.html)
Made-up citation: "Nine out of ten doctors cannot tell Snuggie derangement syndrome from diabetes of the blowhole. That's because doctors are buttmunches. In your face, science!"