Phrase guide

open one's big mouth

verb · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

verb

Meaning 1

To speak about things rashly or foolishly, when it would be better to stay silent.

Definition source: English Wiktionary via Wiktextract

Usage: informal

Examples

  • Grr, why do I always open my big mouth after doing something wrong?

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

9 source translations are retained for this English entry.

  • Finnish: avata suuri suunsa — speak when it would be better to stay silent
  • French: ouvrir sa grande gueule — speak when it would be better to stay silent
  • Icelandic: vera kjaftaskur — speak when it would be better to stay silent
  • Polish: kłapać dziobem — speak when it would be better to stay silent
  • Polish: gadać jak najęty — speak when it would be better to stay silent
  • Polish: gadać, co ślina na język przyniesie — speak when it would be better to stay silent
  • Polish: pleść trzy po trzy — speak when it would be better to stay silent
  • Russian: язы́к зачесался (jazýk začesalsja) — speak when it would be better to stay silent
  • Russian: распустить язы́к (raspustitʹ jazýk) — speak when it would be better to stay silent