## 323. Do someone a good turn

## 324. Do something at the drop of a hat

## 325. Do something by the seat of your pants

## 326. Doesn't hold water

## 327. Doesn't know beans about it

## 328. Dog and pony show

## 329. Dog days of summer

## 330. Dog-eat-dog

## 331. Dollars for doughnuts

## 332. Don't beat a dead horse

## 333. Don't count your chickens before they hatch

## 334. Don't cry over spilt milk

## 335. Don't do anything I wouldn't do

## 336. Don't give up your day job

## 337. Don't hold your breath

## 338. Don't know him from Adam

## 339. Don't know if I'm coming or going

## 340. Don't look a gift horse in the mouth

## 341. Don't put all your eggs in one basket

## 342. Don't quote me on that