- a receptacle or one of a series of pigeonholelike slots, as in an office, into which incoming mail is placed for pickup.
- drop(def 12).
Origin of mail drop
First recorded in 1970–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Related Words for mail dropmailbox
- mainly US and Canadian a receptacle or chute for mail