A person who pretends to be tough while online and in the comfort of his own surroundings. Generally, a cyber first waver is good at making threats and brinksmanship, but never follows through with his statements. This behavior usually occurs on social media websites.
Don't be afraid of that guy, he argues with everybody and challenges them to fights but he never shows up. He's a cyber fist waver.
by GlApp Money Shot September 14, 2011