Knock yourself out
Meaning: to make yourself ill with tiredness, please begin doing it
Example: If you carry on working like this, you'll knock yourself out. If you want to make hotel and airline and car reservations and take care of everything, well, then, knock yourself out.
Example: If you carry on working like this, you'll knock yourself out. If you want to make hotel and airline and car reservations and take care of everything, well, then, knock yourself out.
