I will open your ass (ani iftach lech ta'tahat)
a Hebrew threat that means you’re about to get the worst butt crack ever from someone who’s angry enough to turn into a monster.
My mom said, 'I will open your ass,' after I ate her favorite cookies and threw them at the dog.
My brother yelled it when I spilled his soda on his brand new laptop.
My teacher used it when I drew on the walls with permanent marker.