What is the meaning of wonky?

adjective

• Turned or twisted toward one side.
  • usage: "a... Youth with a gorgeous red necktie all awry- G. K. Chesterton; "his wig was, as the British say, skew-whiff"
  • synonyms: askew, awry, cockeyed, lopsided, skew-whiff
• Inclined to shake as from weakness or defect.
  • usage: "a rickety table"; "a wobbly chair with shaky legs"; "the ladder felt a little wobbly"; "the bridge still stands though one of the arches is wonky"
  • synonyms: rickety, shaky, wobbly