Maccometer
A maccometer is how much someone loves to know everything about you, even if it's not their business. It's like they're the most annoying person ever.
My mom's maccometer is wild. She knows everything about my life even if she's not supposed to.
My brother's maccometer is like a monster. He knows everything about me.
My teacher's maccometer is so high, it could make a mountain.