phone sex
noun [ U ] uk/ˈfəʊn ˌseks/ us/ˈfoʊn ˌseks/
色情电话
the activity of talking on the phone with someone about sex in order to become sexually excited
She accused him of having phone sex with prostitutes while she was away on business trips. 她指责他趁她出差在外时与妓女打色情电话。