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noun.
1. a person who fishes with a hook and line, especially one who does so for sport.
2. (Figurative.) a person who tries to get something by using tricks and schemes.
3. Also, angler fish. a kind of saltwater fish of the Atlantic coasts of Europe and North America, that preys upon small fish which it attracts by the movement of wormlike tendrils or filaments attached to its head and mouth.