Sassies are the plural form of the word 'sass', which means impudent or disrespectful speech or behavior.
Sassies are usually seen as rude or impolite.
Examples:
She gives me sassies when I ask her to clean her room.
The child's sassies upset the teacher.
I don't like it when he gives me sassies.
The cat's sassies made everyone laugh.
Her sassies were so rude, they made me angry.
The dog's sassies were so funny, I couldn't stop laughing.