Kind of like replyall but on Facebook. A friend updates their status, a few others comment and then you wade in with a comment aimed not just at your friend but all the others who commented too.
Johnny: My girlfriend is mad with me...

Trey: Why?

Johnny: I posted on Facebook that I was struggling with a hangover. A few of the guys commented and then Lloyd does a replywall about that blonde girl in Hooters. Did it not cross his mind that my girlfriend might be a Facebook friend? Idiot!
by Urban Englander November 13, 2009
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