What is the best/funniest insult you heard in a movie?

The only one I can think of off the top of my head is from White Chicks.

"Your mom is so old, her breast milk is powdered."

...then he blows power in her face XD

"I don’t want to talk to you no more, you empty-headed animal food trough wiper. I fart in your general direction! Your mother was a hamster and your father smelt of elderberries!"
From Monty Python and The Holy Grail

"I'll explain and I'll use small words so that you'll be sure to understand, you warthog faced buffoon."
From The Princess Bride

"You are a sad strange little man, and you have my pity."
From Toy Story