cleft1
  
  adj.
 split, divided, or partially divided into two.past participle of 
cleave1.
Phrase
  
    
      - be 
(or be caught)
 in a cleft stick
 be in a situation in which any action one takes will have adverse consequences.
 
 
  
    
cleft2
  
  n.
  - a fissure or split in rock or the ground.
- an indentation or deep hollow in a person's forehead or chin, or between two parts of the body.
Etymology
  ME clift: of Gmc origin; rel. to cleave1 and alt. by assoc. with cleft1.