could do with something
could do with (something)
One would benefit from something. In this heat, I could do with a cold glass of water right now. You could do with some new shoes—those ones are looking awfully beat-up.
See also: could
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
could ˈdo with something(spoken) want or need something: I could really do with a coffee. ♢ Her hair could have done with a wash. ♢ You look as if you could do with a good night’s sleep.
Farlex Partner Idioms Dictionary © Farlex 2017