■ verb ( ~s , ~ging , ~ged ) raise (one's shoulders) slightly and momentarily to express doubt, ignorance, or indifference.
↘( ~ something off ) dismiss something as unimportant.
■ noun
1》 an act of ~ging one's shoulders.
2》 a woman's close-fitting cardigan or jacket, cut short at the front and back so that only the arms and shoulders are covered.
Origin
ME (in the sense 'fidget'): of unknown origin.