My sweet sweet great grandmother, who was absolutely the sweetest soul on earth (with a temper) would say:
Knock their head off and then throw it at their dead body!
I love that! It’s cool that you still have a great-grandparent,especially one who’s so funny.
Whoops! I misread your statement.”Who was” would obviously mean that she had passed away.I have a tendency to read really fast or miss certain things altogether.