Get, have, etc. the snuffles Definition 1 of 1Pro Tip 1/3Casual Expression Used in informal conversations, often among friends or family. Sorry, can't come to your party, I've got the snuffles. Pro Tip 2/3Not Serious Indicates a mild illness, not seen as serious or alarming. No need to worry; she just has the snuffles and will be fine soon. Pro Tip 3/3Symptom Descriptive Highlights specific symptoms like a runny or blocked nose. Between sneezes, he apologized for his constant sniffle, blaming it on the snuffles.