1. people who are considered stupid or foolish
Usage: informal; derogatory; plural form

Examples

• Those birdbrains forgot to lock the door again.
• Don’t listen to those birdbrains; they don’t know what they’re talking about.
• The teacher was frustrated with the birdbrains who never paid attention.
• My brothers can be such birdbrains sometimes.
• The movie portrayed the villains as complete birdbrains.
• She called her coworkers birdbrains after they made the same mistake twice.