Idiom: fry the fish in its own oil?

It's all Greek to me

At the drop of a hat

Barking up the wrong tree

He can't cut the mustard

It was a feeding frenzy

Getting down to brass tacks

He's getting long in the tooth

Sick as a dog

I smell a rat

Made from scratch

(Just where do I find this scratch? LOL!)

That was the last straw

Make no bones about it

Letting the cat out of the bag

They just had a field day

Don't look a gift horse in the mouth

She has a chip on her shoulder

Back seat driver

Stuck between a rock & a hard place

Back to square one

It's a piece of cake

Just a drop in the bucket

High as a kite

Jump the gun

Pay the piper

It's a whole new ball game

A little bird told me

Don't be a cold fish

He can really cut a rug

Every dog has it's day

That's a horse of a different color

It's nothing to sneeze at

Wag the dog

I'm waiting for the other shoe to drop

Walk on eggshells

Don't waste your breath

He's pulling your leg

Kick the bucket

Many Blessings!

Drop In The Bucket Idiom

Let him stew in his own juice.

Pay dividends

http://idioms.thefreedictionary.com/pay+dividends

The rest is gravy

http://idioms.thefreedictionary.com/gravy

Icing on the cake