The act of writing on someones facebook wall to make either yourself or your friend seem more
fun/cool/witty/popular. It is often done
with the intention of someone in particular reading it.
Q: Why did Sarah write that
on Janes facebook
wall rather than just text her?
A: She was obviously peacocking
Jane: I really want Max to think that
I am moving on!
Sarah: Don't worry, I will peacock you later about last night