double-knock

Meaning, when my wife and I were sleeping my mother would do the double-knock and -- before hearing a reply -- would open the door and announce that breakfast was on the table.

Michael Cohen: Ask Michael Cohen: Privacy Please 2010

Meaning, when my wife and I were sleeping my mother would do the double-knock and -- before hearing a reply -- would open the door and announce that breakfast was on the table.

Michael Cohen: Ask Michael Cohen: Privacy Please 2010

There sounded at the house-door that duplicated double-knock which generally announces the bearer of a telegram.

New Grub Street 2003

With a quick double-knock at one of these doors, the lawyer summoned a servant, who bowed deeply as the two ladies and his master entered.

Virgilia or, out of the Lion's Mouth Felicia Buttz Clark

Mr. Youson gave a short double-knock sort of a laugh.

The Idler Magazine, Volume III, March 1893 An Illustrated Monthly Various

Gladys answered the door to the thundering double-knock that resounded through the house, and was quite taken aback when she saw who the visitor was.

Gladys, the Reaper Anne Beale

There was a loud double-knock at the front door; Carrie rushed out of the parlour, upstairs to her room, and I followed, as Carrie thought it was Mr. Perkupp.

The Diary of a Nobody Grossmith, George, 1847-1912 1921

For the most part one double-knock at any point appeared to satisfy him, but occasionally there would be no answer and he would knock again.

Once a Week 1919

For the most part one double-knock at any point appeared to satisfy him, but occasionally there would be no answer and he would knock again.

Happy Days 1919

An opportune double-knock at the door, which I knew well from old experience in Windsor Terrace, and which nobody but Mr. Micawber could ever have knocked at that door, resolved any doubt in my mind as to their being my old friends.

XXVII. Tommy Traddles 1917