Here's a breakdown:
* Brick wall: A brick wall is solid, unyielding, and impenetrable. It doesn't absorb sound or react to anything you might throw at it.
* Talking to a brick wall: This metaphor implies that the person you are talking to is similarly unresponsive. They might:
* Ignore you completely: Not acknowledging your presence or what you are saying.
* Refuse to engage: Showing no interest in the conversation or your perspective.
* Not understand: Lacking the ability or willingness to comprehend what you are trying to communicate.
Example:
"I tried to explain the situation to my boss, but it was like talking to a brick wall. He wouldn't even look at me."
The phrase can be used humorously or to express frustration. It emphasizes the futility of trying to communicate with someone who is closed off or uninterested.