It is used in photos to indicate that the one using it gets no bitches. At all.
I've been 4 fingers up my whole life.
It means you get hella bitches (including red heads)
He puts 4 fingers up he must get hella bitches.
If you put 4 fingers up in a picture, it means that everybody thinks you are cute.
John used the 4 fingers up in a picture to show how hot he is.
You are the best soccer player.
So many people had 4 fingers up.