DCHP-1 Online
boneyard 
1 n. Slang an old, broken-down horse.
- 1918
But de glory to God w'en I t'ink of de load
An' de boneyard dat carry it over de road
An' de squeak of de gig, and de squeal of de pig
I don't blame it for laugh w'en he look at de rig.
- 1920 There was a time when a brave died, they handsomely killed that dead brave's favorite horse. . . . Now, I find, they have their doubts, and they pick out a dying old bone-yard whose day is over. . . .
2 n. fossil beds, as in the Alberta Badlands.
- 1962 While on the trail, to really get the maximum out of the Dinosaur Boneyards, one should get out of their car and search for petrified bone and wood specimens.
- 1918