backdoor

or back-door

[ bak-dawr, -dohr ]
/ ˈbækˈdɔr, -ˈdoʊr /

adjective

secret; furtive; illicit; indirect.

Origin of backdoor

First recorded in 1605–15; adj. use of back door
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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