This name is a result of the natural gas that oozes from the river mud.

One cannot make a diamond out of river mud; be happy with a brick.

They spend a lot of time diving down to the river mud to get it.

He needed a perfect creature, and that's when he made Adam out of the river mud.

"An impossible attempt to make diamonds from river mud?"

State environmental officials have set a goal of just 1 part per million for river mud.

Surely he could have used something less dangerous for camouflage than river mud.

Our light guns would turn this ship back into river mud.

Yesterday, however, Ross brought them a bucket of river mud.

The bucket of river mud also brought forth another word we can recognize.