Definition from Wiktionary, the free dictionary
See snig (“a kind of eel”).
- To catch an eel by thrusting a baited hook into its den.
- Alternate spelling and pronunciation of snicker (corruption with giggle.) To chortle or chuckle.
- (obsolete) To steal something of little value; diminutive corruption of snag + diminutive suffix.
- sniggler (a person who sniggles)