A person who practices guddling; one who catches fish by hand in streams and under rocks.
From guddle + -er (agentive suffix). The -er suffix makes any verb into 'one who does the verb,' and this poacher's term is centuries old in Scottish usage.
Historic guddlers were often poor farmers supplementing their diet, but the skill was so valued it became almost a badge of outdoor knowledge—poaching folklore in Scotland celebrates the guddler's cunning and patience.
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