opens one's big mouth

o·pens one's big mouth
/ˈəʊ̯.pənz ˌwʌnz bɪɡ‿maʊ̯θ/Canada, US/ˈoʊ̯.pənz ˌwʌnz bɪɡ‿maʊ̯θ/Australia/ˈəʉ̯.pənz ˌwɐnz bɪɡ‿mæɔ̯θ/New Zealand/ˈɐʉ̯.pənz ˌwɐnz bəɡ‿mæʊ̯θ/

A form of open one's big mouth — To speak about things rashly or foolishly, when it would be better to stay silent.

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Meanings

verb
  1. indicativepresentsingularthird personthird-person singular simple present indicative of open one's big mouth
Cite this entry
APA

opens one's big mouth. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/opens%20one's%20big%20mouth

MLA

“opens one's big mouth.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/opens%20one's%20big%20mouth. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “opens one's big mouth,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/opens%20one's%20big%20mouth.

Source: opens one's big mouth on Wiktionary, CC BY-SA 4.0.