"McRefugees"are a growing class of people who sleep overnight in Internet cafes, saunas and McDonald's restaurants for few hundred to a thousand yen. More on it here
BTW McDonalds plans to launch a campaign in the U.K. this spring to get dictionary houses to change current references to the word "McJob."Oxford Dictionary defines McJob asa "an unstimulating, low-paid job with few prospects, esp. one created by the expansion of the service sector."