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

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