"Just remember, this kind of operation can get dirty in a hurry."

At least I knew now why my feet had been so dirty in the shower this morning.

China's rivers are some of the dirtiest in the world.

The city's air remains among the dirtiest in the nation.

They would get very dirty in no time and then he will just throw them to one side.

They were a bit dirty but nevertheless quite new in appearance.

It is not so dirty in the Sahara as people say.

It never used to be a crime to get dirty in the name of something worthwhile.

These attacks have been called the dirtiest in California political history.

I've never minded getting my hands a little dirty in a good cause.