flog a dead horse in Polish
flog a dead horse in Polish
robić coś na próżno
(British, idiomatic) To attempt to get more out of something that cannot give more; to attempt to arouse fresh interest in something that is either hopeless or already settled.
zrobić coś na próżno
(British, idiomatic) To attempt to get more out of something that cannot give more; to attempt to arouse fresh interest in something that is either hopeless or already settled.