scrunch

(noun) a crunching noise.

(verb) make a noise typical of an engine lacking lubricants. Synonyms: crump, thud.

(verb) sit on one's heels. Synonyms: squat, crouch, scrunch up, hunker, hunker down. Examples: "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. Synonyms: wrinkle, ruckle, crease, crinkle, scrunch up, crisp. Examples: "The dress got wrinkled." "Crease the paper like this to make a crane."