1. large diving birds with webbed feet and distinctive calls, found on northern lakes
2. crazy or foolish people
Usage: informal

Examples

• The loons called across the misty lake at dawn.
• We spotted a pair of loons diving for fish near the shore.
• The haunting cry of loons echoed through the wilderness.
• Common loons are known for their striking black and white plumage.
• Those loons drove their car into the lake by accident.
• Don’t listen to those loons spreading conspiracy theories.