an offensive hand gesture also known as the "two-finger salute".
It is performed by flicking the V sign using the two first fingers towards the victim whilst the palm faces the person giving the sign.
The sign can mean "fuck off" "fuck you" or "up yours!"
Guy 1: haha, i saw the state of you trying to fight Jamesy the other day!
Guy2: *sends vickies* Fuck you, mate!