O shii
You yell O shii like you just saw your worst enemy fall into a pit of snakes. It’s for when something is so bad or so good it makes you want to scream and cry at the same time.
O shii! My brother tried to ride a bicycle on a skateboard and fell into a bush.
O shii! My friend got a pet dinosaur for his birthday and it eats my homework.
O shii! I just got a gold star for doing my math homework without crying.