sieve(redirected from sieved)
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have a mind like a sieve
To be exceptionally forgetful or absentminded. I need to start getting more sleep at night, because lately I've had a mind like a sieve. John has a mind like a sieve—I had to leave him three separate reminders about the play tomorrow night!
have a memory/mind like a sieve
to be very bad at remembering things I've never known anyone so forgetful - she's got a memory like a sieve.