knock yourself out

US /nɑk jərˈsɛlf aʊt/
UK /nɑk jərˈsɛlf aʊt/
"knock yourself out" picture
1.

fai pure, vai avanti

used to tell someone that they can do something if they want to, even if you think it is not a good idea or will not be successful

:
You want to try to fix the car yourself? Sure, knock yourself out!
Vuoi provare a riparare la macchina da solo? Certo, fai pure!
If you think you can finish all that work by yourself, knock yourself out.
Se pensi di poter finire tutto quel lavoro da solo, fai pure.