Take a minute to review our carry-on guidelines so you know before you go, and your trip gets off to a smooth start. Please note that there are additional carry-on guidelines for United ExpressÂ® flights. Each traveler can bring on board one carry-on bag plus one personal item free of charge.
Ring-around-the-roses is, as mentioned in the OP, a nursery rhyme. It is also a common children's game, at least in the US. The exact words vary, as is true of all playground rhymes, but this is the version with which I'm most familiar.
The ring around the rosies is the red ringed rash that was the sure sign of having the plague. If you developed a rash it wasn't serious, unless a red ring appeared around the spot. A pocket full of posies is the flowers brought to a funeral. Or the fact that the smell of decaying bodies was so bad that people began carrying flowers in their pockets to try to ward off the smell. It's ashes ashes (not atishoo) which is because they tried to burn the bodies, rather than bury them.