Idioms and Phrases with at one's door
at one's door
Also, on one's doorstep. Very nearby, as in The bus stop was practically on our doorstep, or The Mexican currency crisis is literally at our door. [Early 1900s] Also see lay at someone's door.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.