1
general::
Phrase(s): close the door on someone or something
Go to shut the door (up)on someone or something.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Also, shut the door on. End or exclude from consideration, discussion, or action. For example, His lack of qualifications closed the door on further promotions, or Last quarter's poor sales figures have shut the door on any expansion plans.
American Heritage Idioms