Ha, I was right ; look what wikipedia says:Gemütlichkeit (German pronunciation: [ɡəˈmyːtlɪçkaɪt] ( listen)) is a German abstract noun that has been adopted into English.[1] Its closest equivalent is the word "coziness"; however, rather than merely describing a place that is compact, well-heated and nicely furnished (a cozy room, a cozy flat), Gemütlichkeit connotes the notion of belonging, social acceptance, cheerfulness, the absence of anything hectic and the opportunity to spend quality time.Here's more:http://en.wikipedia.org/wiki/Gem%C3%BCtlichkeit
OK, one more:It's Monday morning and I think I need the drug he's on.
I wonder if that word is related to "gezelligheid" or "gezellig" which is a Dutch word. All of these words (Dutch, Swedish) look quite similar to gemütlich or gemütlichkeit. I'll bet it is.
Halloween is over, but today I came across this gif which tickled my funnybone. Thought I'd share with you: