be as clear as mud

To be difficult to see or understand. I guess I need to call a lawyer because these legal contracts are as clear as mud.

(humorous)

to be impossible to understand 'Does that make sense?' 'Yes, it's as clear as mud.'

Name	Pronounced	Usage
Khaliq	-	Arabic
Yessenia	-	Spanish (Latin American)
Phyllida	FIL-i-də	English (Rare)
YasemİN	yah-se-MEEN	Turkish
Herodotos	-	Ancient Greek
Vittoria	-	Italian