putting down anyone or the general public in a Facebook post for something that one may perceive to be offensive (but may or may not be in reality); similar to gossiping.
Sara: posted a picture of someone not 'at their best' with the comment, "Oh, so who does this look like?! I laughed my ass off when I saw it! hahahaha!"
Brittany: thought to herself, "There goes Sara again, shamebooking her friends, doesn't she realize we see this?!?!"