eye someone up
phrasal verb with eye verb [ T ] uk/aɪ/ us/aɪ/ eyeing or eying | eyed
informal
向…眉目传情，向…送秋波，向…抛媚眼
to look at someone with sexual interest
That guy in the grey jacket has been eyeing you up all evening. 那个穿灰夹克的家伙整个晚上都在色迷迷地盯着你看。