knock on the door of

Verb

Meaning

To ask for entrance or admission into.
Every year, thousands of students knock on the door of Ivy League universities.

Used other than figuratively or idiomatically: see knock,‎ on,‎ the,‎ door,‎ of.

Source: en.wiktionary.org

Examples

I never know when somebody's going to knock on the door of my own unconscious in a way that I wouldn't have anticipated. Anna Deavere Smith

Close letter words and terms

knock on heaven's door knock on my door knock on the door knock on the head knock on wood knock one off