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Tell's girls that they're gorgeous, beautiful etc. on Facebook but face to face they don't talk the girl. They also take pictures of themselves in the mirror and often look like a complete cock but they don't know it.
"That dickhead said he liked her on Facebook but I've never actually seen him talk to her."
"Yeah he's a right Facebook warrior."
by I shake tree's for milk January 06, 2012
a person who threatens or talks shit to people over facebook, but doesn't do anything when confronted in person.
Guy 1: This guy messaged me the other day saying he's gunna kick my ass, but when i tried to walk up to him today he ran away.

Guy 2: Wow.What a facebook warrior.
by d-wrecktion January 18, 2011
A facebook warrior is a person who is always on facebook.
Tyrone : Yo swear down bruv, James is always on facebook.

Reece : Yeah innit he's a facebook warrior.
by Chei October 19, 2011