eat your ass
You say ‘eat your ass’ to your friend on Halloween if they try to steal your candy and then trip into a jack-o-lantern.
My friend said, 'Eat your ass!' after I threw pumpkin guts on his head.
I yelled, 'Eat your ass!' when he tried to take my candy and fell into a pile of leaves.
He screamed, 'Eat your ass!' when I made him wear a costume and he cried.