give sb. the cold shoulder直译是“冷肩膀”的意思，引申为不理某人、碰一鼻子灰。

【例句】
I wanted to be friends with her but she gave me the cold shoulder.
我想与她做朋友，却碰了一鼻子灰。

Most of the other professors gave him the cold shoulder for his act of plagiarism.
因为他的剽窃行为，大多数其他教授都不理睬他了。