fuck yo mouf
Fuck your mouth, otherwise said as "fuck yo mouf" is the reply to a "slam" or a "burn." Generally stated after a person says something offensive, wrong, or a lie.
Man 1: "Yo, my hommie just rolled up on some bitches and hit it hard last night."
Man 2: "Man, that was my sister. Fuck yo mouf!"
Man 2: "Man, that was my sister. Fuck yo mouf!"
Slapped the fuck out yo mouf
What happens when someone is served an open palmed disrespect, often utilizing a tool. Is seen as a deserved act of revenge after a period of humilation.
In that movie Wanted, the main character slapped the fuck out yo mouf when he bashed his cheating best friend with that keyboard. It said, "Fuck You"