merry-go-round in WordNet English dictionary

1. a large, rotating machine with seats for children to ride or amusement
   carousel  carrousel  merry-go-round  roundabout  whirligig 
   
2. a never-ending cycle of activities and events (especially when they seem to have little purpose)
   "if we lose the election the whole legislative merry-go-round will have to start over"
   merry-go-round