sign off on (something)

sign off on (something)

To give express, formal approval of something, often by literally signing a document. We're just waiting for the boss to sign off on the project before we start working. My thesis supervisor has to sign off on each chapter I write to make sure I'm staying focused on the topic.
See also: off, on, sign
Farlex Dictionary of Idioms.

sign off on something

to sign a paper, indicating that one has finished with something or agrees with the state of something. The publisher signed off on the book and sent it to be printed. I refuse to sign off on this project until it is done correctly.
See also: off, on, sign
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • literally
  • be scratching (one's) head
  • be scratching your head
  • être
  • explode with
  • explode with (something)
  • drift with
  • drift with (something)
  • bring (something) down on (oneself)
  • bring down on