If an older person describes a younger person as sassy, they mean that they are disrespectful in a lively, confident way. Confidence & self-assurance (definition of sassy from the cambridge advanced learner's dictionary & thesaurus © cambridge university press) The meaning of sassy is having or showing a rude lack of respect :

Disrespectful or impudent; See examples of sassy used in a sentence. Definition of sassy adjective in oxford advanced learner's dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Elizabeth leiknes is the author of the sinful life of lucy burns, a novel she describes as sassy women's fiction. Not to be sassy - but i should probably throw in duh. I call it sassy because this …

Elizabeth leiknes is the author of the sinful life of lucy burns, a novel she describes as sassy women's fiction. Not to be sassy - but i should probably throw in duh. I call it sassy because this …