scrunch : Idioms & Phrases

• verb sit on one's heels
  scrunch; crouch; hunker down; hunker; squat.
  
  • In some cultures, the women give birth while squatting
  • The children hunkered down to protect themselves from the sandstorm
• verb make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in
  scrunch; crisp; crease; crinkle; ruckle; wrinkle.
  
  • The dress got wrinkled
  • crease the paper like this to make a crane

WordNet