You slappy your grandpappy
the yo mama joke but better.
Teacher: "Greg, can you please come up to the class?"
Greg: "Yo momma!"
Teacher: "Greg, I don't appreciate that language!"
Greg: "You slappy your grandpappy!"
Teacher: "Stop it, Greg!"
Greg: "Your great grandmammy has a big fanny
Greg: "Yo momma!"
Teacher: "Greg, I don't appreciate that language!"
Greg: "You slappy your grandpappy!"
Teacher: "Stop it, Greg!"
Greg: "Your great grandmammy has a big fanny