pop the question
To ask somebody to marry, usually from the male to the female, often on bended knee with an engagement ring.
See: the question
See: the question
My jaw dropped when Danny popped the question.
Popped the big question
Asked someone to marry you. Usually asked by the male to the female
While walking on the beach, Tommy popped the big question, and Melinda happily accepted. So this has become an engagement party.