The Collaborative International Dictionary of English v.0.48:

Sniggle \Snig"gle\, v. i. [imp. & p. p. Sniggled; p. pr. & vb.
   n. Sniggling.] [See Snig a kind of eel.]
   To fish for eels by thrusting the baited hook into their
   holes or hiding places. --Walton.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sniggle \Snig"gle\, v. t.
   To catch, as an eel, by sniggling; hence, to hook; to
   insnare. --Beau. & Fl.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

69 Moby Thesaurus words for "sniggle":
   allure, bag, bait, bait the hook, birdlime, bola, catch, catch out,
   chortle, chuckle, cobweb, decoy, dragnet, enmesh, ensnare, ensnarl,
   entangle, entoil, entrap, enweb, fishhook, fly, foul, giggle,
   gill net, gin, ground bait, guffaw, harpoon, hee-haw, hook,
   hook in, inveigle, jig, land, lariat, lasso, lime, lure, mesh,
   meshes, nail, net, noose, plug, pound net, purse seine, rope, sack,
   seine, snag, snare, snarl, snicker, spear, spinner,
   spread the toils, springe, squid, take, tangle, tangle up with,
   titter, toils, trap, trawl, trip, wind, wobbler