"scungilli" means: An Italian-American culinary term for whelk or conch — large, chewy sea snails that feature prominently in southern Italian and Italian-Amer.... This is a fairly neutral word with no inherent risk attached. There is no real cause for parental concern; it is descriptive vocabulary rather than something dangerous. If your child uses it, context will usually make the meaning clear. A brief, curious question about where they heard it is generally enough to know whether to follow up.