Crazy

a.
  1. Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.
  2. Broken, weakened, or dissordered in intellect; shattered; demented; deranged.
  3. Inordinately desirous; foolishly eager.
    4. Crazy bone ,
    the bony projection at the end of the elbow (olecranon), behind which passes the ulnar nerve; -- so called on account of the curiously painful tingling felt, when, in a particular position, it receives a blow; -- called also funny bone.
    Crazy quilt ,
    a bedquilt made of pieces of silk or other material of various sizes, shapes, and colors, fancifully stitched together without definite plan or arrangement.