give it a rest
US /ɡɪv ɪt ə rɛst/
UK /ɡɪv ɪt ə rɛst/

1.
used to tell someone to stop doing or saying something annoying
:
•
Oh, give it a rest! I've heard that story a hundred times.
•
He keeps complaining about his job; someone needs to tell him to give it a rest.