(as) clear as mud

US /əz klɪr əz mʌd/
UK /əz klɪr əz mʌd/
"(as) clear as mud" picture
1.

chiaro come il fango, incomprensibile

very difficult to understand; not clear at all

:
His explanation of the new policy was as clear as mud.
La sua spiegazione della nuova politica era chiara come il fango.
The instructions for assembling the furniture were as clear as mud, so I had to guess.
Le istruzioni per montare i mobili erano chiare come il fango, quindi ho dovuto tirare a indovinare.