shoot (one) the bird
To raise the middle finger (a rude gesture of anger or displeasure) at one. The phrase "flip (one) the bird" is also commonly used. What are you shooting me the bird for, I didn't even say anything insulting! I shot my brother the bird after he said that he'd never seen a worse basketball player than me.
flip/give/shoot somebody the ˈbird
(American English, slang) make a rude sign at somebody with your middle finger