“A fish out of water” is when someone or something is out of place, not where it belongs - like a fish out of water!

The farmer felt like a fish out of water in the big city.

"Horse of a different color"

A "horse of a different color" is someone or something that is incredibly unique or special.

That goofy clown really is a horse of a different color!

"Let the cat out of the bag"

To "let the cat out of the bag" means to reveal a secret.

The teacher accidentally let the cat out of the bag about the pop quiz tomorrow.

"Raining cats and dogs"

"Raining cats and dogs is an expression that means it's raining really hard.

I wouldn't go outside right now, it's raining cats and dogs!

"Pig out"

To "pig out" means to eat a lot of food.

Sometimes I like to skip breakfast so that I can pig out at lunch!

"When pigs fly"