G.I. joe or G.I.jane
a person who talks so much behind your back it's like they’re trying to make your life a nightmare.
My boss is a G. I. Joe. He told my manager I was lazy just because I took a lunch break.
My sister is a G. I. Jane. She told my crush I was a weirdo just to make him laugh.
My friend is a G. I. Joe. He told my crush I was a joke just because he was mad I didn’t text him.