booking

book (on) out

To leave a location very quickly. He booked on out the back door as soon as he saw his ex-girlfriend walk into the party. I booked out of the house when I realized that I was going to be late for my appointment.
See also: book, out

book up

To reserve all available spots or options. A noun or pronoun can be used between "book" and "up." Well, that hotel is all booked up, so we'll have to look for a room somewhere else.
See also: book, up
Farlex Dictionary of Idioms.

book something up

to reserve all the available places. The travel agency booked all the good seats up. Who booked up all these seats?
See also: book, up
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

book up

v.
To reserve all the available places or times, such as seats, rooms, or appointment hours, from something or someone: We couldn't get a place to sit because someone had booked up the entire restaurant. There are only two small hotels on the island, and their regular customers book them up a year in advance. You'll never get an appointment; the doctor is booked up through the next month.
See also: book, up
The American Heritage® Dictionary of Phrasal Verbs.
See also:
  • book (on) out
  • book on out
  • book out
  • bolt out
  • cast (one's) eyes down
  • cast eyes down
  • a hair in the butter
  • book up
  • a golden key can open any door
  • send (a) mixed message(s)