1. the small rounded ends of pins
2. stupid or foolish people
Usage: informal; derogatory

Examples

• The seamstress sorted pins by their pinheads to organize her sewing kit.
• Colorful pinheads made it easier to spot the pins in the fabric.
• The magnetic tool picked up all the pins by their metal pinheads.
• Don’t listen to those pinheads who said it couldn’t be done.
• He called his lazy coworkers pinheads behind their backs.
• The coach was frustrated with the pinheads on his team who kept missing easy plays.