Carl: Wow i gotta head shot! Eat My Ass (you can also use E.M.A. here if u don't want to type it out)
James: Wow dude, im gonna really have to eat your ass this time!
A phrase often used by flat girls when on the losing side of a argument usually resulting in the other person in said argument saying “what ass” by doing that you make them the real booty consumer
Mike Portnoy from Dream Theater's catchphrase. He even hid it in a song in morse code. And he says it a lot too. I find it hilarious, and it can be used in the way you think it could be used.
Teacher - Now, you guys have a 10 page essay due in a week. Muhahahahah!!!