scrunch up v 1: sit on one's heels; "In some cultures, the women give birth while squatting"; "The children hunkered down to protect themselves from the sandstorm" [syn: {squat}, {crouch}, {scrunch}, {hunker}, {hunker down}] 2: make wrinkles or creases into a smooth surface; "The dress got wrinkled" [syn: {wrinkle}, {ruckle}, {crease}, {crinkle}, {scrunch}, {crisp}]