Meanings
verbopen one's big mouth (third-person singular simple present opens one's big mouth, present participle opening one's big mouth, simple past and past participle opened one's big mouth)
present singular third person opens one's big mouth · participle present opening one's big mouth · participle past opened one's big mouth · past opened one's big mouth
- informalTo speak about things rashly or foolishly, when it would be better to stay silent.
Grr, why do I always open my big mouth after doing something wrong?
Translations
Finnish avata suuri suunsa
- avata suuri suunsaspeak when it would be better to stay silent
French ouvrir sa grande gueule
- ouvrir sa grande gueulespeak when it would be better to stay silent
Icelandic vera kjaftaskur
- vera kjaftaskurspeak when it would be better to stay silent
Polish mleć językiem jak najęty, gadać, co ślina na język przyniesie
- mleć językiem jak najętyspeak when it would be better to stay silent
- gadać, co ślina na język przyniesiespeak when it would be better to stay silent
- mówić trzy po trzyspeak when it would be better to stay silent
Cite this entry
APA
open one's big mouth. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/open%20one's%20big%20mouth
MLA
“open one's big mouth.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/open%20one's%20big%20mouth. Accessed November 5, 2026.
Chicago
WatkinsX Dictionary, s.v. “open one's big mouth,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/open%20one's%20big%20mouth.
Source: open one's big mouth on Wiktionary, CC BY-SA 4.0.