1. Rude or Impertinent Speech: This is the most common interpretation. A "forward mouth" refers to someone who speaks in a disrespectful or overly bold manner, often with an attitude of superiority or arrogance. They might be quick to criticize, interrupt, or make inappropriate comments.
2. Speaking Out of Turn: A "forward mouth" can also describe someone who speaks before considering the situation or their audience. They might jump to conclusions, make premature judgments, or talk over others.
3. Sexual Suggestiveness: In some cases, "forward mouth" could refer to someone who uses sexually suggestive language or behavior. This meaning is less common and would be dependent on the specific context.
Example Sentences:
* "She had a forward mouth and was always making snarky remarks about everyone." (Rude or Impertinent Speech)
* "His forward mouth got him into trouble with the teacher again." (Speaking Out of Turn)
If you encountered this phrase in a specific piece of writing, please provide more context so I can give you a more accurate answer.