Douglas Harper's Etymology Dictionary
Wiktionary
sniggler
n. A person who catches eels by hand, one who sniggles.
Usage examples of "sniggler".
But I knew the gut was sound this time, and as I fancied he had risen to the sniggler, I had no anxiety about the tackle holding.
In the open water, on the Ettrick, you may see half a dozen snigglers busy.