open one's mouth

idiom

: to speak
He says something stupid every time he opens his mouth.

Dictionary Entries Near open one's mouth

open one's mind

open one's mouth

open out

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“Open one's mouth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/open%20one%27s%20mouth. Accessed 25 Apr. 2024.

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