The anus, generally used in reference to anal sex.
The rear side of the hole, furthest from the golfer.
A secret means of access to a program or system.
A subsidiary entrance to a building or house at its rear, normally away from the street.
A means of access, often secret and unprotected, to something.
A rear side door of a car, or at the back of a van.
Achieved through indirect means.
The path of a pitch which starts outside and then slides over the plate.
To enter a tube by accelerating from behind; to surf into an already formed hollow wave, in contrast to the normal method of slowing to allow a surfable wave to form.
To attempt to accomplish by indirect means, especially when direct means are proscribed.
to add a backdoor (a secret means of access) to a program or system.
Anal sex.
Sex with a boy.