keep it down to a dull roar

keep it down to a dull roar

To be quiet or stop making a lot of noise; to maintain a low level of noise. Often used as an imperative. Kids, when you work together, please keep it down to a dull roar.
See also: down, dull, keep, roar
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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References in periodicals archive ?
Oh you've heard the screams have you, sorryaI'll try and keep it down to a dull roar next time.