no sooner ... than

no sooner (do something) than (do something else)

One action had just concluded when something else happened or began. No sooner had I wrapped up the meeting than everyone bolted from their seats. She had no sooner taken the meal out of the oven than someone started knocking at the door.
See also: no, something, sooner
Farlex Dictionary of Idioms.

no sooner ... than

As soon as: No sooner was the frost off the ground than the work began.
See also: no, sooner
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • no sooner (do something) than (do something else)
  • no sooner...than...
  • had sooner (do something)
  • be wrapped up in (someone or something)
  • be wrapped up in somebody/something
  • bolt out
  • sooner than you think
  • wrap around
  • wrap around (someone or something)
  • no sooner said than done