Flake.
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[flāk]
NOUN
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1.a small, flat, thin piece of something, typically one that has broken away or been peeled off from a larger piece.
"paint peeling off the walls in unsightly flakes" ·
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synonyms: sliver · wafer · shaving · paring · peeling · chip · shard · scale · crumb ·
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2.
NORTH AMERICAN
informal
a crazy or eccentric person.
VERB
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1.come or fall away from a surface in thin pieces.
"the paint had been flaking off for years"
synonyms: peel off · peel · chip · scale off · blister · come off · come off in layers ·
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2.break or divide (food) into thin pieces.
"flake the fish"
3.
NORTH AMERICAN
informal
fail to keep an appointment or fulfill a commitment, especially with little or no advance notice.
"a real friend won't ever flake on you"