Get some rest while you can, things around here'll really be hopping over the next few days.
On the other side of that door, Alan guessed, things were hopping.
"Yes, five or six billion years from now things may really be hopping."
Countless simulations gave them a sense of exactly where the things would hop in their erratic jumps.
Small, invisible things hopped and rolled under their feet.
At the turn of the century, things were hopping.
Other things, fortunately invisible, hopped or slithered away under the bushes and croaked reproachfully at him.
The ground vibrated as the thing hopped toward him.
It was Sunday, and things were fairly hopping.
People like me remember the days when this place was a fronton, and things were really hopping all the time.