scrunch

nouns

a crunching noise
scrunch
is a type of (narrower)
sound of any kind (especially unintelligible or dissonant sound)
"he enjoyed the street noises"; "they heard indistinct noises of people talking"; "during the firework display that ended the gala the noise reached 98 decibels"
noise

verbs

make a noise typical of an engine lacking lubricants
crump, scrunch, thud
sit on one's heels
"In some cultures, the women give birth while squatting"; "The children hunkered down to protect themselves from the sandstorm"
crouch, hunker, hunker down, scrunch, scrunch up, squat
make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in
"The dress got wrinkled"; "crease the paper like this to make a crane"
crease, crinkle, crisp, ruckle, scrunch, scrunch up, wrinkle