Person1: (talking to Person2) ya i dont like that bobkid Person2: really? i dont think he's that ba-
Person3: HI EVERYBODY! hey Person1, cna you help me?
Person1:(gives the finger)
"The Finger" refers to the middle finger, that is, the third finger from either side of your hand. When it is raised on its own and pointed at someone, it means "fuck you," or similar. This symbolism was created by the Greeks, and gets its definition from the fact that the hand takes the shape of a penis and testicles.
Boy: "Did that guy just give me the finger?"
Girl: "I think so. Maybe you should quit being such an asshole."
Although the bow and arrow stories are nice they are incorrect. The finger was originated by an Englishking who used to make the gesture to potential brides, meaning 'would you like me to fuck you?'. He would do this to see their reactions. The middle finger and the wrist would move almost as a signal to come closer. This gesture became popular among all and was used jokingly.