1. most bold, cheeky, or impudent in speech or behavior
Usage: informal; superlative form of sassy

Examples

• She was the sassiest student in the entire class.
• That’s the sassiest comeback I’ve ever heard.
• My little sister becomes the sassiest when she’s tired.
• He gave the teacher his sassiest look and walked out.
• The sassiest character in the movie stole every scene.
• She’s always been the sassiest of my three daughters.