Snot/snɑːt/ Definition 1 of 2Pro Tip 1/3Bodily Function Snot refers to a natural substance from the body, so it's not polite to discuss in formal situations. Excuse me while I deal with my snot issue. Pro Tip 2/3Slang Usage 'Snot' can be used informally among friends but might be seen as rude in professional settings. I laughed so hard that snot came out of my nose! Pro Tip 3/3Childish Context Talking about snot is common among children or when taking care of them. Billy, use a tissue to wipe that snot away.