A wooden nickel American informal
To indicate a person or an object that has little or no value
Don't assess this machine as a wooden nickel, it contributes a crucial role to the manufacturing process.
That's proves nothing when Jane considers the newbie as a wooden nickel.
This television is such a wooden nickel, don't waste time repairing it.
The least amount of attention for someone or something
1. Self-praise is worthless.
2.
Used to say that doing something is always/never a wise or advantageous idea, or always/never produces a positive effect
Used to emphasize that you believe something is foolish, worthless, or untruthful
If you're off your trolley, your ideas or behaviour are crazy or insane.
You really think whether i'll pay the debt. You're off your trolley