N. Sass; a self assured confidence and sentiment of 'fierceness.' Largely positive conotation
Adj. Sassyness: To have sass, to be sassy
One's sassyness can be portrayed in witty quips or playfully standoffish, sarcastic comments
Clever, witty, sarcasm with attitude.
Solomn Sam walks into room...
"Have you ever been happy at any point in your life?" Steven remarks with a serious tone of sassyness