Eat my kitty litter
A strong insult that means you think someone is the worst. It’s like saying they’re worse than a broken toaster.
My friend said 'Eat my kitty litter' when I took his lunch without asking.
The teacher told the class 'Eat my kitty litter' after we threw confetti in her face.
He told his crush 'Eat my kitty litter' when she laughed at his joke.