back door (suomeksi)

takaovi (s: subsidiary entrance to building / secret, unprotected means of access / automotive: rear door / takaovi / rear side door / slang: anus)
sivuovi (s: subsidiary entrance to building)
takaportti (s: secret, unprotected means of access / computing: secret means of access)
takaluukku (s: automotive: rear door / takaovitakaluukku / door at the back of a van)
kähmiä (v: to attempt to accomplish by indirect means)