adj.  won·ki·er, 
won·ki·est  Chiefly British  1.  Shaky or unsteady: a wonky table.
2.  Out of alignment; crooked: "The door itself looked wonky somehow, not quite square with the building" (Steve Augarde).
3.  Not functioning properly or normally:  wonky digestion; a wonky phone connection.
4.  Mentally unbalanced; crazy.