| insincere expression of friendship, admiration, support, etc.; service by words only: He paid only lip service to the dictator. |

| lip service n. Verbal expression of agreement or allegiance, unsupported by real conviction or action; hypocritical respect: "Lip service continues to be paid to resolving regional conflicts, but there is no sense of urgency" (Henry A. Kissinger). |
Insincere agreement; to “pay lip service” is to consent in one's words while dissenting in one's heart: “The boss's support of affirmative action was merely paying lip service; he never committed himself to it in any substantial way.”
lip service
Verbal but insincere expression of agreement or support. It is often put as pay or give lip service, as in They paid lip service to holding an election next year, but they had no intention of doing so. [Mid-1600s]