Verb
give someone the cold shoulder (third-person singular simple present gives someone the cold shoulder, present participle giving someone the cold shoulder, simple past gave someone the cold shoulder, past participle given someone the cold shoulder)
(idiomatic) To snub, resist or reject somebody; to regard somebody distantly.
I must have made him angry with my comment. He’s been giving me the cold shoulder ever since I said it.
give someone the cold-shoulder