Facebook mother
A Facebook mom is a woman who thinks she knows everything about your life even though she's not in it. She comments on your problems like she's your therapist, gives advice about your kids, and acts like she's your best friend even though she's never met you.
'You should have taken a break, hon. I know you're stressed, but I'm not even your mom!'
'Your kid failed math? Just tell him to fail harder. I did it when I was 12.'
'You didn't invite me to the baby shower? That’s the worst thing you’ve ever done.'