Flake

A loose filmy mass or a thin chiplike layer of anything

"There were a few flakes of paint on the floor from when we were painting the walls."

A scale of a fish or similar animal

A prehistoric tool chipped out of stone.

A person who is impractical, flighty, unreliable, or inconsistent; especially with maintaining a living.

"She makes pleasant conversation, but she's kind of a flake when it comes time for action."

To break or chip off in a flake.

"The paint flaked off after only a year."

To prove unreliable or impractical; to abandon or desert, to fail to follow through.

"He said he'd come and help, but he flaked."

To store an item such as rope or sail in layers

"The line is flaked into the container for easy attachment and deployment."

To hit (another person).