Puts a hex on is an expression used to describe the act of casting a spell or curse on someone. The two crossword solutions for this term are JINXES (6 letters) and voodoos (7 letters). Jinx is a term used to describe a type of curse or bad luck that is believed to be caused by saying certain words or performing certain actions. Voodoo is a type of folk magic originating in West Africa and practiced in many parts of the world, which involves the use of charms, spells, and rituals to bring about desired outcomes.