noun A derogatory term used to describe someone who is perceived to be unintelligent or foolish
Used informally to describe someone with a small or underdeveloped brain, implying low intelligence or foolishness.
Used colloquially as a playful insult or teasing term among friends or acquaintances.
Used as a derogatory term to insult someone's intelligence or decision-making abilities.
In a creative writing setting, a character might be insulted by being called a 'peabrain' by another character.
A psychologist might use the term 'peabrain' in a humorous way when discussing cognitive abilities with a client.