back door

back door

n

1. a door at the rear or side of a building

2. a means of entry to a job, position, etc., that is secret, underhand, or obtained through influence

Thesaurus

Noun	1.	back door - a secret or underhand means of access (to a place or a position); "he got his job through the back door" backdoor access - the act of approaching or entering; "he gained access to the building"
	2.	back door - an undocumented way to get access to a computer system or the data it contains backdoor access code, access - a code (a series of characters or digits) that must be entered in some way (typed or dialed or spoken) to get the use of something (a telephone line or a computer or a local area network etc.)
	3.	back door - an entrance at the rear of a building back entrance, backdoor exterior door, outside door - a doorway that allows entrance to or exit from a building