1.) French, 17C. A working class female or seamstress, one you'd find in a dress or fabric shop. Term based on the boring type of grey fabric she wore. A variation of the term, 'Grisette'. 2.) Irish. A flirtatious or coquettish female.
She is way too hot for prudish attire. Although she's older, she still knows how to keep it young and fresh. 2.) A young chickadee with the style and poise of an older woman. She's very mature for her young age.