have something over with

get + over with

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have something over with (third-person singular simple present has something over with, present participle having something over with, simple past and past participle had something over with)

1. (idiomatic) To experience the ending or completion of something.
   • 1949 April 22, Records and Briefs of the United States Supreme Court, published 1950, page 4847:

     I am going to let the evidence (T-3745) stand for whatever it is worth and you may go ahead and put the other one in too and then we will have that over with, and you can go ahead and put the other one in.

   • 1923 July, Hermann B. Deutsch, “The Man Who Did Not Matter”, in Hearst's International-Cosmopolitan, page 118:

     Best to have it over with. Let us have done with the ghastly business by all means.

   • 1997, Ivan Doig, Bucking the Sun: A Novel, page 404:

     Rosellen wished she and Darius had this over with.

   • 2013, J.R. Hunter, Over the Edge, page 82:

     One part of him knew that this is what she really wanted, to get out of this world, have it over with, to end her pain.

   • 2015, Matthew J. Davenport, First Over There: The Attack on Cantigny, America's First Battle of World War I, page 163:

     We were anxious to have it over with.

• get something over with

• “have something over with”, in OneLook Dictionary Search.