hear oneself think, can't

can't hear (oneself) think

Cannot concentrate on anything due to overwhelming noise. Can you turn down that blaring music? I can't hear myself think! There's so much construction going on during the day that you can't even hear yourself think over the chorus of jackhammers.
See also: hear, think
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

hear oneself think, can't

Be unable to concentrate because there is too much noise. For example, There was so much noise from the jackhammers we couldn't hear ourselves think. [Early 1900s]
See also: hear
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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