Definitions for "Cocked"
Keywords:  spine, slant, lean, deforms, longer
With reference to the spine of a book: permanently pushed forward, back or askew.
Refers to a spine of a book that is no longer square or true, resulting in misalignment of the fore-edges of the covers. Compare with stacked.
A die not resting squarely on one of its faces.
Keywords:  rifle, hammer, draw, firing, prepare
to "cock" a rifle means to draw back the hammer to prepare it for firing.