1. a person or thing that flakes or breaks off in thin pieces
2. a person who is unreliable or fails to follow through on commitments
Usage: informal
3. a tool or stone used to produce flakes, especially in prehistoric toolmaking
Usage: archaeology

Examples

• The old paint was a flaker, coming off in large chunks.
• Don't count on him—he's a total flaker when it comes to plans.
• Archaeologists found a stone flaker used by early humans to create sharp tools.
• The cereal flaker broke down the grain into smaller pieces.
• She's known as a flaker because she cancels meetings at the last minute.
• The flaker produced thin, sharp flakes of obsidian.