talk to the hand
Definition from Wiktionary, the free dictionary
- (colloquial, US, idiomatic) Used to dismiss another person's argument by indicating that the speaker (or writer) is not prepared to hear (or read) anything further that the other person has to say (or write). It is often used while simultaneously holding up the hand with the palm facing the speaker.
- Girl, you can talk to the hand 'cause I ain't listenin' no more.