(as) clear as mud

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

jasne jak błoto, niezrozumiałe

very difficult to understand; not clear at all

:
His explanation of the new policy was as clear as mud.
Jego wyjaśnienie nowej polityki było jasne jak błoto.
The instructions for assembling the furniture were as clear as mud, so I had to guess.
Instrukcje montażu mebli były jasne jak błoto, więc musiałem zgadywać.