Alternative spelling of back door, which can be used attributively.

Alternative spelling of back door

(figuratively) Of work, very physically tiring.

A person who says nasty things about another person behind the second person's back: that is, out of their sight and hearing.

A thing or a person put in the rear or in the back of something to reinforce, hold, support. / A default arrangement that holds if all else fails. / (baseball) A wall or fence behind home plate.

(transitive) To serve as backstop for. / (transitive) To bolster, support.

(intransitive) To pedal backwards on a bicycle. / (intransitive) To step backwards. / (intransitive, idiomatic) To distance oneself from an earlier claim or statement; back off from an idea.

The key on a typewriter that moves the head one position backwards. / (computing) A keyboard key used for removing a character behind the cursor, and moving the cursor one position backwards.

(computing) To remove a character behind a cursor. / (computing) To move a magnetic tape to a previous block.

(transitive) to attack someone (especially verbally) unfairly in a deceitful, underhand, or treacherous manner, especially when they're not present in the place or situation that it happens. (as if stabbing them in the back). See backbite.