The Collaborative International Dictionary
                    Sniggling
                    
                        
                
                                                                    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.
Wiktionary
                    sniggling
                    
                        
                
                                                                    vb. (present participle of sniggle English)
Usage examples of "sniggling".
He set about the work at once, sniggling to himself the while, for he guessed there would be a further rumpus about this some day, and Sebastian was not without a certain pleasure in the thought of Fraulein Rottenmeier being a little disturbed.
His adolescent amour propre could not let him confess to such a thing in front of his disdainful father or his sniggling sister.