Definitions for "Double Wood"
Keywords:  sleeper, barmaid, pin, bicycle, tandem
Any spare in which two pins are lined up one directly in front of the other. Common leaves are the 2-8 or the 3-9, but can also be in combination with other pins.
(also SLEEPER) When one pin is directly behind the other, especially two pins such as the 1-5, 2-8 or 3-9.
Pin hidden behind another pin, such as the 1-5, 2-8, 3-9. Also called barmaid, bicycle or sleeper.