Cheeky means slightly rude or showing no respect, but often in a funny way. It can also mean something that you eat, drink, or do quickly or without planning. See synonyms, antonyms, and usage examples of cheeky. Cheeky means slightly rude or disrespectful, often in a charming or amusing way. Learn how to use this British slang term in different contexts and situations with examples and synonyms. What Does Cheeky Mean? Cheeky is an adjective commonly used to describe someone’s behavior or temperament that exhibits boldness or rudeness but often in a playful or appealing manner. CHEEKY meaning: 1. slightly rude or showing no respect, but often in a funny way: 2. used to describe something…. Learn more.