Etymology
Advertisement

backdoor (adj.)

also back-door, "devious, shady, illegal," 1640s. The notion is of business done out of public view. The noun back door in the literal sense is from 1520s, from back (adj.) + door. The association with sodomy is from at least 19c.; compare also back-door man "a married woman's lover," African-American vernacular, early 20c.

Advertisement
Advertisement
Definitions of backdoor

backdoor (n.)
an undocumented way to get access to a computer system or the data it contains;
Synonyms: back door
backdoor (n.)
an entrance at the rear of a building;
Synonyms: back door / back entrance
backdoor (n.)
a secret or underhand means of access (to a place or a position);
Synonyms: back door
From wordnet.princeton.edu