https://en.wikipedia.org/wiki/Talk_to_the_hand
"Talk to the hand" is an English language slang phrase from the 1990s. It originated as a negative way of stating one doesn't want to hear what the person who is speaking is saying. It can be lengthened to the phrase, "Talk to the hand, because the ears ain't listening". Another variant: "talk to the hand because the face don't understand!"
the phrase is sarcastic or obnoxious. The phrase was popularized by actor and comedian Martin Lawrence in his 1992 sitcom Martin.The phrase is formally reported from as early as 1995, when a local Indianapolis magazine story noted "Talk to the hand-The phrase, which means, 'Shut up', is accompanied by a hand in front of the victim's face".
It is usually accompanied by the gesture of extending one arm toward the other person, with the palm of that hand facing the person being insulted, as in "Stop". Use of the phrase was noted to be a passing trend, aLast year every young person I knew was saying 'Talk to the hand'. Now no one even remembers "Talk to the hand'".
Lynne Truss, noted for Eats, Shoots & Leaves, used the phrase as the title and prime example in her 2006 book, Talk to the Hand: The Utter Bloody Rudeness of the World Today.
