Here are some possibilities:
* "Sassy": This is the most likely word you meant. It means bold, lively, and confident, often in a playful or cheeky way.
* "Sassy" as an acronym: It's possible it's an acronym for something, but without more context, it's impossible to know.
To help me understand what you meant, please provide more context:
* What was the sentence or phrase where you saw this word?
* What is the topic of the conversation or text?
With more information, I can give you a more accurate answer.