A horse on you
A horse on you is the original insult. It’s like saying you’re not just bad, you’re bringing the whole damn barn with you.
A Horse on you! You’re the reason the pizza got cold and the chips got soggy.
A Horse on you! You’re the person who tried to tell a joke and it took 10 minutes.
A Horse on you! You’re the reason I had to eat the last donut and it was stale.