He’s a little green behind the ears.
A loose tongue spoils the broth.
It’s all moth-eared.
I can read him like the back of my book.
From now on, I’m watching everything you do with a fine-tuned comb.
It’s as easy as falling off a piece of cake.
He’s like a duck out of water.
These hemorrhoids are a real pain in the neck.
It’s time to grab the bull by the tail and look him in the eye.
I wouldn’t be caught dead there with a ten-foot pole.
I hope he gets his curve ball straightened out.
It’s time to step up to the plate and lay your cards on the table.
He’s burning the midnight oil from both ends.
You can’t change the spots on an old dog.
It sticks out like a sore throat.
It’s like looking for a needle in a hayride.
People are dying like hotcakes.
You can’t go in there cold turkey with egg on your face.
We have to get all our ducks on the same page.
We shouldn't drop anchor until we're out of the woods.
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