Verb
talk to the hand (third-person singular simple present talks to the hand, present participle talking to the hand, simple past and past participle talked to the hand)
(colloquial, US, African-American Vernacular, chiefly sarcastic) Used to dismiss another person's argument by indicating that one is not prepared to hear or read anything further from that person. 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.