A type of fish, likely named for its foolish behavior or appearance; a fish that is easily caught or deceived.
Folk compound of fool plus fish. Regional or archaic term likely created to describe fish species that were easily caught or exhibited seemingly foolish behavior.
Foolfish is likely folk etymology—fishermen probably gave amusing names to fish they could catch easily, reflecting the fishing culture's humor about which species were 'stupid' enough to fall for their tricks.
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