what do you say to something something

Từ điển Oxford Advanced Learner 8th

ˌwhat do/would you ˈsay (to sth/doing sth) idiom
(informal)would you like sth/to do sth?
•What do you say to eating out tonight?
•Let's go away for a weekend. What do you say?
Main entry: ↑say_idiom