I will open your ass (ani iftach lech ta'tahat)
a legendary phrase used when someone’s so mad, they want to rip your butt open like a hot dog and let the whole world see your shame.
My dad said it when I failed his math test and cried in the hallway.
My cousin screamed it after I took his video game and hid it in the closet.
My friend said it when I told everyone his secret.