1 C1 慣用的 カジュアル
社交の場で、人を感心させたり楽しませたりするために、同じおもしろい話や体験を何度も話す。
"He's been dining out on that story about meeting the Prime Minister for years."
“
He would dine out on the anecdote for years to come.
— The Guardian (common formulation in British journalism)