thối mồm

Definition
  1. Adjective (vulgar):
    • To have bad breath: The literal meaning describes a condition where a person's mouth emits an unpleasant odor.
    • To have a foul mouth / to talk too much (vulgar): A figurative, offensive meaning describing someone who speaks inappropriately, often by interfering, gossiping, or saying things that cause trouble.
Usage Examples
  • Adjective:
    • Hắn ta hút thuốc nhiều nên bị thối mồm. (He smokes a lot, so he has bad breath.)
    • Đừng thối mồm nói chuyện của người khác. (Don't be foul-mouthed / Don't gossip about other people's business.)
    • Thằng đó thối mồm lắm, đừng nghe . (That guy has a really foul mouth; don't listen to him.)
Advanced Usage
  • The term is considered rude and vulgar. It is highly offensive when used in its figurative sense to criticize someone's speech or tendency to interfere.
  • It is primarily used in informal, confrontational, or very casual speech.
Variants and Related Words
  • Hôi miệng (adj): The standard, neutral, or medical term for having bad breath (halitosis).
    • Bạn nên đi khám nếu bị hôi miệng. (You should see a doctor if you have bad breath.)
Synonyms
  • To have halitosis: The formal/medical term for bad breath.
  • To be foul-mouthed: To use offensive or abusive language.
  • To be a busybody / to gossip: To interfere in others' affairs or spread talk.
Related Idioms
  • Thối miệng: A less common variant with the same meanings as "thối mồm."
  • Nhiều chuyện: To be meddlesome or to gossip (less vulgar than "thối mồm").
    • ấy hơi nhiều chuyện. (She is a bit of a gossip.)