shrug
US /ʃrʌɡ/
UK /ʃrʌɡ/

1.
raise (one's shoulders) slightly and momentarily to express doubt, ignorance, or indifference
:
•
He just shrugged and walked away.
•
She gave a small shrug, indicating she didn't know the answer.
raise (one's shoulders) slightly and momentarily to express doubt, ignorance, or indifference